Investigating and Litigating Amusement Park Injury Cases

Table of Contents

1. ·Introduction: The Machine Is Talking to You
2. 1How These Cases HappenSeven patterns, one spine of written standards.
3. 2The Numbers: Prevalence and SeverityWhat CPSC, NEISS, IAAPA, and the peer literature actually say.
4. 3The Regulatory Stack and the Standard of CareSeven layers, from the fixed-site exemption down to the operator's own paper.
5. 4InvestigationFirst seventy-two hours, scene reconstruction, chain of custody, telemetry, biomechanics, and public records.
6. 5Engaging the ExpertWhat I deliver, in the order you need it.
7. 6The Plaintiff PlaybookChain of responsibility, negligence per se, the standard-selection gap.
8. 7The Defense PlaybookDefend with the file, not with adjectives.
9. 8Trampoline ParksF2970, court-to-court transitions, foam pits, and the attendant problem.
10. 9Bounce Houses and InflatablesF2374, wind and anchor, occupancy, and the rental-company duty.
11. 10Waivers, Arbitration, and MinorsWhy the paperwork at the front counter usually does less than the defense hopes.
12. 11The Landmark FileKentucky Kingdom, ICON Park, Station Nightclub of trampoline parks.
13. 12Deposition Question BankRide, trampoline park, bounce house, waterpark, operator, inspector, and manufacturer scenarios.
14. 13The Reference LibraryASTM F24, state statutes, CPSC data, peer literature.
15. ·Sources and Notes
16. ·About the Author

The Machine Is Talking to You

An amusement ride is a machine designed to convince a rider that they are in danger, while keeping them out of it. A trampoline is an energy-return device that stores, then releases, most of a jumper's kinetic energy. A bounce house is a fabric pressure vessel that a manufacturer engineered against a specific wind load and a specific weight of children. When any of them injures somebody, the machine has usually been telling the operator, in writing and in advance, exactly how not to let that happen.

I have worked as a hands-on stunt performer, coordinator, and special-effects operator for more than three decades, on productions for Disney, Warner Bros., Paramount, and Universal. I have designed, rigged, and operated attractions and effects that put paying audiences within feet of moving hardware. I have written eleven patents and authored twenty-seven books in the safety literature of stunts, pyrotechnics, and firearms, and I have served as an expert witness in civil and criminal matters, on both plaintiff and defense sides, in these fields for more than two decades.

Amusement, trampoline park, and inflatable cases sit at the intersection of three things I do professionally every week: designing machines that produce controlled forces, operating them safely in front of the public, and testifying about them when the safety plan broke down. The pattern in this space is the same as in the pyrotechnics and firearms books that precede this one. There is a written rule for how the device should behave, a written rule for how it should be inspected, a written rule for how the operator should be trained, a written rule for where the patron should be, and a written rule for what should have been on the sign. When any of those rules were broken and the injury followed, the case turns on which party shows the jury which rule, in which document, on which page.

Amusement litigation has two structural features counsel should understand before signing the retainer. First, the federal government does not regulate the machine most people picture when they hear the word "amusement park." A 1981 amendment to the Consumer Product Safety Act removed permanently fixed amusement rides from CPSC's jurisdiction, leaving them to a patchwork of state programs of very different rigor. Second, the operational and design standards that actually control the cases live at ASTM Committee F24, and are voluntary until adopted by a state or contract. A serious expert in this field has read those standards in the edition in force on the date of loss, and can tell counsel which section number was breached before the deposition is scheduled. This book is a working guide to that discipline.

How These Cases Happen

Every amusement, trampoline park, and inflatable case I have ever seen sorts into one of seven patterns. The pattern determines the defendants, the governing standards, and the evidence that decides the case. Naming the pattern early orients the first thirty days of discovery.

1. Restraint or Containment Failure

A patron slips out of, is ejected from, or is not adequately held by a restraint on a moving ride. Roller coasters, drop towers, spinners, swing rides, and slingshots all live here. The design standard for restraint and containment is ASTM F2291 Section 6, which addresses patron restraint, clearance envelope, and containment design criteria. The evidence is the manufacturer's restraint specification, the operational bulletins issued after commissioning, any restraint modifications made by the operator, the pre-shift inspection log, and, when it exists, on-board or park video. The Tyre Sampson case at ICON Park is worked in detail in Chapter 11.

2. Mechanical or Structural Failure

A cable snaps, a lap bar unlocks, a hydraulic seal fails, a weld cracks, a bogey wheel comes off the track, a car uncouples. The Lassiter incident on Six Flags Kentucky Kingdom's Superman Tower of Power is worked in detail in Chapter 11. Defendants: the manufacturer, the operator, the maintenance contractor, and, in older parks, the aftermarket rebuilder. Governing documents: ASTM F2291 (design), F1193 (quality and manufacture), F770 (ownership, operation, maintenance, and inspection), F893 (inspection), and F853 (weld quality). The case turns on the manufacturer's service bulletins, the operator's non-destructive testing records, the daily and periodic inspection logs, and the metallurgical analysis of the failed component.

3. Operator Error

A ride is started with a guest not properly restrained, is not stopped when it should have been, or is loaded outside the manufacturer's height, weight, or health envelope. Operator error is almost never a single-cause finding. Behind it is a training program, a supervisor's audit, a staffing decision, a shift-length calculation, and a manufacturer's operating manual. See Chapter 11 for the Sampson operator-adjustment facts.

4. Maintenance and Inspection Lapse

Non-destructive testing that should have been done was not. A daily walk was skipped. A manufacturer's service bulletin sat in a file. A component past its recommended service life stayed in the machine. Governing documents: ASTM F770 and F893, the manufacturer's maintenance manual, and any state inspection requirement that references either. The case turns on the maintenance logs, the third-party inspection reports, and the parts-replacement history.

5. Patron Instruction, Warning, and Fit

A patron was too tall, too short, too heavy, too light, pregnant, or medically excluded, and the operator loaded them anyway. Or the height chart was faded, missing, or in the wrong place. Or the pre-ride warnings were in a language the patron did not read. ASTM F770 requires patron notification of ride restrictions in a form the reasonably attentive patron will see; F893 addresses signage inspection. The Sampson case is here too. Every one of the seven patterns can share a case.

6. Inflatable and Trampoline-Court Failure

A bounce house tumbles or lifts in a wind gust. A trampoline court attendant fails to enforce one-jumper-per-mat. A foam pit is under-filled or improperly padded at the entry. A patron double-bounces into an adult on an adjacent mat. Design standards: ASTM F2374 for constant-air inflatables, F2970 for trampoline courts, F2729 for home-use inflatables. Attendant-to-jumper ratio, patron education, and enforcement records control most of these cases at trial.

7. Water Attraction Failure

A slide user runs out too fast into shallow water. A wave-pool guard is not watching the shallow-to-deep transition. A drop-slide's spray is obscuring the entry pool. A guest is caught in a suction fitting. Governing documents: ASTM F2376 for aquatic play features, the Virginia Graeme Baker Pool and Spa Safety Act (15 U.S.C. § 8001 et seq.) for suction entrapment, the model aquatic health code, and the manufacturer's slide design specifications. The case turns on lifeguard positioning, run-out geometry, and any warnings that did or did not appear at the top of the slide.

Every pattern has its own defendants and its own decisive evidence, but they share a common spine: a written, engineering-numeric standard of care that the responsible party either met or did not.

The Numbers: Prevalence and Severity

Amusement, trampoline park, and inflatable injuries are among the most under-tracked mass-market injury categories in the country. Federal statistics exist for the pieces CPSC still regulates (mobile rides, inflatables, trampolines), but the biggest single category (permanently fixed amusement rides) sits mostly outside the federal reporting system. The numbers below are the ones a fair-minded expert can actually stand behind.

Amusement Rides

CPSC's National Electronic Injury Surveillance System estimated approximately 40,142 emergency-department-treated injuries associated with amusement attractions in 2023. From 2010 to 2018, CPSC counted 22 deaths on amusement rides, excluding water parks and water slides. The International Association of Amusement Parks and Attractions publishes an annual North American Fixed-Site Ride Injury Survey through the National Safety Council; the current edition reports a ride-related serious-injury rate of roughly one per one million rides taken, on more than a billion rides per year across major North American fixed-site parks. Both numbers are directionally useful. Neither is complete: the fixed-site exemption in the Consumer Product Safety Act means CPSC does not have a mandatory injury reporting authority over permanently fixed rides.

Trampoline Injuries

CPSC/NEISS estimated approximately 98,000 trampoline-related emergency-department visits in 2009, of which about 3,100 required hospitalization. The American Academy of Pediatrics 2012 policy statement, "Trampoline Safety in Childhood and Adolescence," documented an overall annual injury rate greater than 30 per 100,000, with orthopedic and lower-extremity injuries most common. Approximately 75% of trampoline injuries occur when multiple people are jumping on the same mat, and the smallest jumper is disproportionately the one hurt. Younger jumpers are at elevated risk of fracture: in one 299-patient prospective series of pediatric trampoline injuries, 91% of injuries were fractures and 49% required surgical intervention or sedated reduction. From 2004 to 2011, NEISS estimated more than one million pediatric trampoline emergency-department visits nationally.

Trampoline Parks Specifically

Commercial trampoline parks are their own injury category, distinct from home trampolines and growing much faster. The peer-reviewed literature since 2015 has documented a steep rise in park-related emergency-department presentations, with a proportionally higher share of serious lower-extremity fractures, cervical spine injuries from failed flips, and multi-jumper collisions. The AAP policy statement specifically notes that "rules and regulations for trampoline parks may not be consistent with the AAP guidelines," and that the ASTM standard for these facilities (F2970) is the operational baseline against which park practice should be compared.

Bounce Houses and Inflatables

The CPSC's 2015 report on inflatable amusements estimated approximately 113,272 emergency-department-treated injuries associated with inflatables in the years 2003 through 2013, with about 90% of those attributable to bounce houses. Thompson and colleagues (2012) found a statistically significant fifteenfold increase in pediatric bounce-house injuries between 1995 and 2010, reaching an annual rate of approximately 5.28 injuries per 100,000 U.S. children. CPSC estimated approximately 18,000 inflatable-associated ER visits in 2018 alone. The wind-related subset is small in count but catastrophic in severity: a peer-reviewed study published in the Bulletin of the American Meteorological Society documented 132 wind-related bounce-house incidents worldwide between 2000 and 2021, causing at least 479 injuries and at least 28 deaths.

What the Numbers Mean for Case Selection

For the plaintiff bar: trampoline-park and inflatable cases are the volume business, especially where minors are involved and the operator's compliance with ASTM F2970 or F2374 is documentable. Fixed-site ride cases are the severity business, and are almost always fought against a defense of state-inspection compliance that has to be tested against the underlying standard the state adopted (or failed to adopt). For the defense bar: the exposure calculus should assume the plaintiff's expert will produce the ASTM section numbers and the manufacturer's service bulletins the operator did not follow, and should ensure the file supports the compliance story before the case is priced.

The Regulatory Stack and the Standard of Care

There are seven layers to the standard of care in an amusement, trampoline park, or inflatable case. Each has its own agency, its own document, and its own enforcement history. In a well-worked case, the expert points the jury to the exact provision in the exact layer that answers the question in dispute.

Layer One: The Federal Fixed-Site Exemption

The Consumer Product Safety Act at 15 U.S.C. § 2052(a)(5) defines a "consumer product" to include any "mechanical device which carries or conveys passengers along, around, or over a fixed or restricted route or course or within a defined area for the purpose of giving its passengers amusement, which is customarily controlled or directed by an individual who is employed for that purpose and who is not a consumer with respect to such device, and which is not permanently fixed to a site. Such term does not include such a device which is permanently fixed to a site." That last sentence, added by Congress in 1981 (Pub. L. No. 97-35, § 1213, 95 Stat. 703, 724), is why permanently fixed amusement rides sit outside CPSC's core jurisdiction. Mobile and traveling rides remain consumer products and are subject to CPSC's reporting and recall authority under §§ 15 and 19 of the CPSA. Legislative efforts to close the exemption (most recently the National Amusement Park Ride Safety Act, H.R. 1855) have been introduced repeatedly and have not yet passed.

Layer Two: Federal Consumer Product Regulation Where It Still Applies

Inflatable amusements, trampolines, portable and mobile amusement rides, and traveling carnival attractions remain within CPSC's authority. CPSC has issued Amusement Ride Safety Bulletins, an Inflatable Amusements Deaths and Injuries report (2015), and public guidance on bounce-house wind safety. Section 15(b) of the CPSA requires manufacturers, importers, distributors, and retailers of covered products to report to CPSC "immediately" upon receiving information reasonably supporting a conclusion that the product contains a defect that could create a substantial product hazard or creates an unreasonable risk of serious injury or death. In inflatable-rental and mobile-carnival cases, the § 15(b) reporting file is a fruitful discovery target.

Layer Three: ASTM F24 (Amusement Rides and Devices)

ASTM Committee F24 is where the operational standard of care for the entire industry actually lives. The core standards, all published by ASTM International, include:

• F770, Standard Practice for Ownership, Operation, Maintenance, and Inspection of Amusement Rides and Devices. Signage, patron restrictions, pre-shift inspection, operator training, incident reporting, and periodic maintenance.
• F893, Standard Guide for Inspection of Amusement Rides and Devices. Inspection intervals, methods, and documentation.
• F1193, Standard Practice for Quality, Manufacture, and Construction of Amusement Rides and Devices. Quality assurance during manufacture and installation.
• F2291, Standard Practice for Design of Amusement Rides and Devices. Sections cover general design criteria; patron restraint, clearance envelope, and containment; acceleration limits; loads and strengths; hydraulic and pneumatic systems; safety-related control systems; electrical; mechanical; fencing, guardrails, gates, and walkways; welding; fasteners; operator controls; documentation; coatings; and fall protection.
• F2374, Standard Practice for Design, Manufacture, Installation, Operation, Maintenance and Inspection of Air-Supported Structures, Air-Inflated Structures, and Air-Inflated Attractions (bounce houses, inflatable slides, inflatable obstacle courses).
• F2970, Standard Practice for Design, Manufacture, Installation, Operation, Maintenance, Inspection and Major Modification of Trampoline Courts.
• F2729, Consumer Trampoline Enclosures.
• F2376, Practice for Classification, Design, Manufacture, Construction, and Operation of Water Slide Systems.
• F853, Practice for Maintenance Procedures for Underground Utilities (as adopted by reference for park utilities and infrastructure).
• F1159, Practice for Design of Amusement Rides and Devices that are Outside the Purview of Other F24 Design Standards.
• F1957, Standard Test Method for Composite Foam Hardness-Durometer Hardness (adopted by reference in inflatable and pit contexts).
• F2137, Practice for Measuring the Dynamic Characteristics of Amusement Rides and Devices.
• F3054, Standard Guide for Training of Amusement Ride and Device Maintenance Personnel.

F24's standards are voluntary until adopted by a state or by contract, but they are what the industry itself uses, and they are what a jury will hear called the "industry standard" in every case that reaches trial.

Layer Four: State Amusement Ride Safety Laws

Because CPSC does not regulate fixed-site rides, the states do (or do not). The National Association of Amusement Ride Safety Officials (NAARSO) and Saferparks have tracked the state-by-state map for years. Approximately 44 states have some form of amusement ride regulation, of widely varying rigor. A partial map:

• Robust state programs that adopt ASTM F24 standards, require third-party or state inspection, and maintain incident-reporting authority: California (Cal. Labor Code Div. 5, Ch. 8 & 8 CCR § 344.5 et seq., operated by Cal/OSHA Amusement Ride and Tramway Unit); New Jersey (Carnival-Amusement Ride Safety Act, N.J.S.A. 5:3-31 et seq., DCA); Pennsylvania (Amusement Ride Inspection Act, 4 P.S. § 401 et seq.); Ohio (R.C. 1711.50 et seq., ODA); Virginia; Maryland; Massachusetts; New York.
• Programs of varying rigor: Florida (§§ 616.242 & 616.245, F.S., DACS, plus the Tyre Sampson Act of 2023 tightening drop-tower and thrill-ride oversight); Texas (Ins. Code Ch. 2151, TDI); Illinois; Colorado; Arizona.
• Historically limited or no state amusement-ride regulation: Alabama, Mississippi, Nevada, South Dakota, Utah, Wyoming, and a handful of others have offered little or no state inspection of fixed-site rides. Check the current edition of state law on the date of loss.

Where the state has adopted ASTM by reference (as many have) the ASTM section number becomes negligence-per-se material at trial. Where the state has not, ASTM comes in as industry standard through the expert.

Layer Five: OSHA and Workplace Rules for Employees

Ride operators, maintenance mechanics, ride inspectors, and setup and teardown crew are covered by federal OSHA (29 CFR Parts 1910 and 1926) and by state-plan analogs. Common citations include LOTO (29 CFR 1910.147), machine guarding (29 CFR 1910.212), fall protection (29 CFR 1910.28 and 1926 Subpart M), confined-space entry (29 CFR 1910.146), and hazard communication (29 CFR 1910.1200). Cal/OSHA runs the Amusement Ride and Tramway Unit under 8 CCR § 344.5 et seq., and issues both worker-safety and public-safety citations arising from ride incidents.

Layer Six: Local Permits, Fire Code, and Building Code

The certificate of occupancy for the building, the fire marshal's occupancy limits, the local land-use permit for the operation, and (in inflatable and trampoline park contexts) the parking-lot or storefront zoning approval all sit at this layer. Trampoline parks in particular have had well-documented occupancy and egress issues where jump-court expansion outpaced the fire code work; check the certificate of occupancy for the incident date.

Layer Seven: The Operator's Own Paper

The manufacturer's operating manual. The pre-shift inspection form. The daily maintenance log. The service-bulletin file. The height-rail installation drawing. The attendant training curriculum. The signed employee handbook. The rental agreement and site-check form (for inflatables). The waiver, the arbitration clause, and the reservation record. These documents are almost always the tightest standard in the case, because they are contemporaneous, specific to that operation, and self-imposed.

How to Use the Stack

Start at the bottom (the operator's own paper) and work up. If the operator's own manual required a 27:1 patron-to-attendant ratio and the trampoline court that day was running 55:1, you rarely need to go higher. If the operator's own paper is silent, ASTM supplies the industry standard. If ASTM is silent or nonspecific, state law controls. Negligence per se is available at every layer above the operator's own paper.

Investigation

Investigation is the work that happens between the incident and the report. In amusement, trampoline park, and inflatable cases, most of the evidence that will decide the case is perishable on a timer measured in days. Park closed-circuit video systems typically overwrite on a rolling seven to thirty day loop. Ride programmable logic controllers can be reset by the next power cycle. Inflatable anchor stakes are pulled the same afternoon and returned to the rental truck. Weather station records for the incident hour remain retrievable, but the eyewitness memory of the parent standing at the exit gate does not. The first seventy-two hours are where cases are made or lost, and the investigator's job is to walk into that window with a written protocol and leave with a preserved record.

The First Seventy-Two Hours

The first day of investigation has a fixed sequence. Confirm that the physical unit, whether ride car, trampoline mat, or inflatable, has been sequestered from service and locked out. Photograph the incident location before any repair, replacement, or crowd movement has changed it. Document the restraint envelope, meaning the geometry of the lap bar, over-shoulder harness, seat contour, and any patron-contact surface, in the position it occupied at the moment the ride returned to the station. For an inflatable, photograph the anchor pattern with each stake, strap, sandbag, and water barrel in place, along with the blower, its inlet, and the ambient conditions around the unit. For a trampoline park, photograph every court-to-court transition, foam-pit depth, mat gap, and pad coverage in the area of the incident, along with the attendant station and its sight lines. The purpose of the first-day photograph set is not artistic. It is to prove, later, what the machine looked like before anyone had a reason to change it.

By the end of day one, counsel or the expert should have a written preservation letter in the operator's hands, and the operator's insurer should have acknowledged it. The letter names, by category, the ride components and control-system logs, the trampoline court and its foam-pit fill, the inflatable and its blower and anchors, the closed-circuit video across all cameras with view of the ride path and the queue, the staff schedules and attendant assignments, the training and requalification files, the inspection and maintenance records, the incident report and any § 15(b) draft to CPSC, the reservation and waiver record for the injured patron, and the personal cellular telephone photographs and messages of every employee on shift at the time. The preservation letter is dated the day the case is retained. Video that is not demanded in writing before the loop cycles is not evidence.

Day two is the site walk. The site walk is done with the physical unit in the exact configuration it was in when the incident occurred, or as close to that configuration as the operator will permit. Where the operator refuses, the refusal is documented in writing. The investigator walks the patron's path from queue entry to load platform to ride path to unload, timing each segment, photographing each signage panel and height rail at eye level and at the height of the injured patron, and noting each attendant station and its sight lines. On a trampoline court, the walk is done at the pace and in the pattern the injured jumper used, with the attendant staffing that was on the schedule that hour. On an inflatable, the walk documents the wind on the incident date, discussed below, along with the anchor points as they existed and the occupancy at the moment of failure.

Day three is the interview day. Every employee on shift, every patron who was in the queue or on the ride, and every first responder is contacted for a recorded statement, in person where possible and by telephone where not. Statements taken on day three are more accurate than statements taken on day thirty, and both are far more accurate than statements taken on the courthouse steps two years later. The interviews are transcribed and produced on a rolling basis.

Scene Reconstruction

Scene reconstruction is the discipline of turning a preserved site into a set of measured facts a jury can be walked through. It has four components: geometry, environment, human factors, and timing.

Geometry is measurement. Restraint clearance is measured in the position and posture of the injured patron, not in the manufacturer's advertised envelope for a fifty-percentile adult. Foam-pit depth and fill density are measured against ASTM F2970 with a calibrated probe, at multiple points across the pit, because fill settles unevenly under use. Inflatable footprint and anchor spacing are measured against the operator's manual and against F2374. Ride acceleration profiles are captured, where the ride is available for testing, with three-axis accelerometers mounted at the seat pan, the head restraint, and any location where the injured patron's body contacted the vehicle, following the dynamic-characteristic method of F2137.

Environment is what the atmosphere and the surroundings were doing at the moment of the incident. Wind on the incident date, discussed at length in Chapter 9, is retrievable from the National Weather Service Automated Surface Observing System, from nearby airport METAR archives, and from Iowa State University's ASOS-AWOS-METAR archive, all at one-minute resolution for most stations. Temperature and humidity are retrieved from the same sources. Lighting at an outdoor ride at dusk, or at an indoor court after a bulb has been out for six weeks, is measured with a calibrated photometer at the patron's eye position, not at the attendant's clipboard.

Human factors is the analysis of what the operator and the patron could see, could hear, and could react to. Sight lines from the attendant station to every point on the trampoline court are photographed at attendant eye height and mapped against the ASTM F2970 attendant-per-court ratio. Reaction time is analyzed against the peer literature on visual detection and response, where the question is whether the attendant could have intervened in the time the incident unfolded. Warning legibility is measured against ANSI Z535 and against ASTM F770 and F2291, at the patron's approach angle and the ambient light on the incident date.

Timing ties the other three together. The reconstruction produces a second-by-second timeline from the moment the patron entered the queue to the moment emergency medical services arrived, cross-referenced to the video timecode, the ride control system log, the point-of-sale reservation timestamp, and the 911 call. Where the video and the log disagree, the disagreement itself is often the case.

Evidence Handling and Chain of Custody

The physical exhibit in an amusement case is usually one of a small number of objects: the restraint hardware from the ride vehicle, a section of the trampoline mat or the pad system, the fabric of the inflatable and its seams, the blower unit and its inlet screen, the anchor stakes and straps, or a component from the ride's mechanical or hydraulic system. Every one of these objects has a rental company, a manufacturer, or an insurance adjuster with an incentive to retire it from service the day after the incident.

Chain of custody begins with a written sequestration demand at the moment of retention, identifying the exhibit by manufacturer, model, serial number where marked, and location. Where the operator agrees to preserve on site, the exhibit is photographed, tagged, and stored in a lockable location with dated access logs. Where the operator will not preserve on site, the exhibit is transferred to a neutral storage facility under a written custody agreement, with each transfer signed and dated. Inspection is done jointly, with counsel for all parties invited in writing, and on a schedule that allows destructive testing only after all sides have completed non-destructive examination. Photographs are taken in raw format with a scale and a color card in every frame. Metadata is preserved.

Destructive testing, when it becomes necessary, is done under a written protocol agreed by all parties or ordered by the court. Fabric tensile testing of an inflatable, weld metallurgy on a restraint bar, or hydraulic pressure testing on a ride cylinder is scheduled with all counsel present or expressly waived in writing. A destructive test performed unilaterally is a spoliation motion waiting to be filed.

Sensors, Telemetry, and Operator Paper

Modern rides, trampoline parks, and inflatable rental operations generate a paper and data trail that most incident investigators never fully collect. Ride programmable logic controllers log fault codes, e-stop events, restraint-check confirmations, and cycle counts, often with retention windows measured in weeks. Vehicle management systems on newer coasters log per-car sensor data, including restraint bar position, block section entry and exit times, and lift chain speed. Water-park slide dispatch systems log rider weight, dispatch interval, and run time. These logs are preserved by writing to the operator's controls integrator, not by asking the ride operator at the podium.

Maintenance databases hold the daily open-inspection checklists, the weekly and monthly preventive-maintenance records, the parts-replacement history, the LOTO logs for every service event, and the technician training and requalification records. Where the operator uses a computerized maintenance management system, the export is requested in native format, not as a printed summary. Where the operator uses paper, the paper is copied in its entirety, including margin notes and pencil markings, because the marginalia is often more probative than the printed form.

Inspector records are held at three levels. The operator's own inspection reports, the third-party inspector's reports where one is retained, and the state inspector's reports where a state amusement-ride program exists. All three are requested. State records are available under state public-records acts, and are usually released within ten to thirty business days. Body-camera footage from a state inspector, where the state uses body cameras, is requested by the same route. Photographs on inspector personal telephones are subject to the same preservation letter as employee telephones.

Employee cellular telephones are routinely the most under-preserved evidence source in this practice. Attendants photograph incidents, text supervisors, and record video from the standing position that the closed-circuit cameras do not cover. Every employee on shift receives a written preservation notice through the operator, and the operator's counsel is put on notice that failure to instruct employees to preserve their personal devices will be treated as spoliation.

Biomechanics and Medical-Records Investigation

The mechanism of injury is proven, or disproven, by the fit between the forces the machine could produce and the injuries the patient actually sustained. That fit is a biomechanics question, and it is answered by reading the medical records against the reconstructed loads.

The medical record set includes the emergency medical services run sheet, the emergency department triage and imaging, the hospital admission and operative notes, the discharge summary, the physical therapy and rehabilitation notes, and any prior imaging and treatment for the same body region. Prior records matter because the defense in a soft-tissue case usually turns on preexisting condition, and the plaintiff in a fatal case usually turns on a coroner's finding of mechanism. Autopsy reports, when available, are read in full, along with the coroner's photographs and any toxicology.

The reconstructed loads come from the Scene Reconstruction section above. A cervical injury from a lap-bar case is analyzed against the peak longitudinal and vertical accelerations at the seat pan and the head, using published tolerance data for the cervical spine at the patron's age and size. A drowning at a wave pool is analyzed against the water depth, the wave period, the lifeguard sight lines, and the published response-time literature for surface and submerged victims. A bounce-house wind incident is analyzed against the anchor pull-out load and the moment arm of the inflatable at the wind speed the reconstruction established.

Where the mechanism does not fit the injuries, the case has a problem. Where it fits, the biomechanics report is often the most persuasive document in the file.

Public Records

A working investigation pulls from six public-records sources before the first deposition. First, the state amusement-ride program, where one exists, holds inspection reports, permit files, and prior incident reports on the same ride or the same operator. Second, the Occupational Safety and Health Administration holds the operator's OSHA 300 log of recordable employee injuries and any inspection or citation history under the OSHA establishment search. Third, the Consumer Product Safety Commission holds § 15(b) filings on the ride, the inflatable, or the manufacturer, and holds NEISS narrative records for injuries treated at reporting emergency departments. Fourth, the local fire marshal holds permit files for pyrotechnic and flame-effect elements, occupancy calculations for indoor facilities, and any inspection history. Fifth, the state secretary of state holds corporate registrations, officers, and registered agents for every entity in the chain of responsibility, from the operator to the ride manufacturer to the rental company to the property owner. Sixth, the ASTM F24 committee holds published standards and, on request through ASTM, correspondence and ballot histories that show what the industry knew about a hazard and when it knew it.

All six sources are requested in the first thirty days of the case. Denials are treated as the first pleading in the public-records dispute, not as the end of the inquiry.

Engaging the Expert

The most important call in an amusement, trampoline park, or inflatable case is the one made in the first two weeks. If I am on the scene, or on preserved park video, or in front of the intact restraint or the intact inflatable, before the ride is put back in service and the video is overwritten on the 30-day rolling loop, the case is usually already halfway won for whichever side hired me.

What I Deliver, in Order

• Triage. A twenty-minute call in which I tell you which of the seven patterns you have, what evidence is perishable (video, restraint hardware, inflatable and blower, attendant sign-in), and what the case is worth on the numbers.
• The preservation demand. A written list of ride components, restraint hardware, inflatable and blower, anchor stakes and straps, control-system logs, video, waivers, reservation and check-in records, staff schedules, training files, and inspection paperwork that must be preserved, and by whom, before it disappears. Park video systems typically loop between 7 and 30 days; the demand letter is dated the day the case is retained.
• The scene reconstruction. Measurements of restraint clearance, court geometry, foam-pit depth and fill, inflatable footprint and anchor pattern, run-out length, and sight lines from the operator station. Where applicable, F2137 dynamic-characteristic measurements of ride acceleration profiles.
• Standards mapping. Every fact of the incident tied to the specific provision it violated: ASTM F24, state code, OSHA, local fire and building code, and the operator's own paper. Jury chart optional but usually decisive.
• Causation in plain English. The report and testimony that translate restraint geometry, anchor loads, or attendant ratios into a story a lay jury will remember on the third day of deliberation.
• Human factors and warning analysis. Where signage, height rails, patron education, or attendant instruction is at issue, a review of the warnings as they existed on the incident date and as ASTM F770 and F2291 required.
• Testimony that survives. Deposition, Daubert, and trial testimony, plaintiff or defense, civil or criminal.

The Deposition Assist

Long before I take the stand, I write deposition outlines for counsel: for the ride operator, the maintenance mechanic, the park inspector, the state inspector, the trampoline-court attendant, the inflatable rental owner, the manufacturer's engineer, and (in fatal cases) the medical examiner. Chapter 12 of this book is a working library of those outlines, organized by scenario.

The Plaintiff Playbook

The plaintiff's job in an amusement or trampoline case is not to prove that the guest was hurt. It is to prove which written rule was broken, by whom, and how the breach reached the plaintiff.

Climb the Chain of Responsibility

Every ride case has at least three defendants: the operator, the maintenance provider, and the manufacturer. Every inflatable case has at least three: the rental company, the venue that hosted the inflatable, and the manufacturer. Every trampoline park case has the operator (usually a franchisee), the franchisor, the manufacturer of the court, and often the landlord of the shopping center where the park is located. Get the chain in writing early, through operating agreements, service contracts, and reservation records.

Force the Standard-Selection Question

The most common defense move in F24 cases is to argue that a specific ASTM section did not apply, or applied only in a different edition, or was superseded. Counsel should confirm early which edition of which ASTM standard was in force on the date of loss, which edition the state had adopted by reference, and whether the operator's own manual imposed a higher (self-imposed) standard.

Try Restraint Cases as Geometry

ASTM F2291 §6 gives you the restraint envelope. The manufacturer's specification gives you the acceptable clearance range. The as-found measurement of the incident restraint gives you truth. Overlay the three. Where the restraint opening exceeded the manufacturer's specification by a measurable amount, geometry does most of the work at trial. Chapter 11 walks the ICON Park FreeFall measurements in detail.

Try Trampoline-Park Cases as Ratios and Rules

ASTM F2970 sets patron education, attendant staffing, and one-jumper-per-mat requirements. The operator's own paper usually sets a specific attendant-to-jumper ratio. Compare the ratio required to the ratio actually staffed on the incident date, using the point-of-sale reservation records and the attendant time cards.

Try Bounce-House Cases as Wind and Anchor

ASTM F2374 gives you a maximum operational wind speed (25 mph, three-second gust) unless a professional engineer has verified higher anchorage. The operator must maintain an operational wind speed at least 5 mph below the design anchor wind. In the absence of a manufacturer-specified limit, F2374 defaults the operator to 15 mph sustained. Overlay those thresholds on the wind observations from the nearest ASOS station on the incident date. Where the inflatable was in operation with occupants above the applicable threshold, meteorology does most of the work at trial.

Negligence Per Se Where the State Adopted ASTM

Where state law incorporates ASTM by reference (California, New Jersey, Pennsylvania, Ohio, and many others), a specific ASTM violation is a specific statutory violation. Plead the specific ASTM number, subsection, and the state adoption vehicle.

Use the § 15(b) File

For mobile rides, trampolines, and inflatables (all still CPSC-covered), request the manufacturer's Section 15(b) reporting history for the SKU at issue, along with all substantially similar incident reports. A pattern of prior similar incidents that did not trigger a report is a substantial-product-hazard case in its own right.

The Defense Playbook

Defense of an amusement, trampoline park, or inflatable case is defense of a compliant operation, not defense of a bad outcome. The defense's job is to know before the plaintiff does whether the operation on the incident date matched the applicable standard, and to price and posture the case accordingly.

Defend with the File, Not with Adjectives

The defense that wins is the defense that produces the pre-shift inspection form, the maintenance log, the training records, the manufacturer's service bulletins and the operator's compliance with each, the signed patron waivers, the height-rail installation drawing, the wind log for the day, the attendant sign-in sheet, and the signed safety-meeting attendance. The defense that loses is the one whose file has a hole where any of those documents should be.

Reconstruct Before You Concede the Mechanism

Do not stipulate to the mechanism of injury until an expert has walked the scene, measured the geometry, and inspected the components. In several cases I have worked, what the complaint called a "restraint failure" was an operator-loading error where the restraint locked exactly as designed but at the wrong geometry for the patron. In several inflatable cases, what the complaint called an "anchor failure" was a rental company that failed to install any anchors at all because the setup was on asphalt and the crew had no ballast.

The Assumption-of-Risk Envelope, Honestly Framed

Assumption of risk is a real doctrine in this space, especially in trampoline park and go-kart cases, but its envelope is narrower than defense counsel often argues. It applies to risks inherent in the activity. It does not apply to risks the operator created by non-compliance with the design or operating standard. Frame the defense around the inherent risk the plaintiff actually assumed, not around a general waiver-of-everything the release purports to secure.

Comparative Fault Where the Facts Support It

Where the plaintiff violated a posted rule (attempted a somersault on a trampoline against posted rules; stood up in a coaster car; exceeded a posted height or weight limit), preserve that evidence early with photographs of the signage, the plaintiff's on-boarding sequence, and any admissions.

Compliance as a Sword, Honestly Framed

If the operator is genuinely compliant with F770, F2291, F2374, or F2970 and the state law that adopted them, put that in front of the jury early, in the form of the ASTM section-by-section and manufacturer-manual-by-page compliance chart. If the operator is partially compliant, do not oversell: a partially true compliance narrative that cracks on cross does more damage than the underlying gap.

Trampoline Parks: The Attendant Problem

Trampoline parks are one of the fastest-growing recreational categories in the country and, per unit of exposure, among the most injury-productive. The engineering of the courts themselves is well developed and standardized. The operational side (attendant staffing, patron education, ratio enforcement, and court-to-court transitions) is where the injuries and the cases live.

The Governing Standard: ASTM F2970

ASTM F2970, Standard Practice for Design, Manufacture, Installation, Operation, Maintenance, Inspection and Major Modification of Trampoline Courts, is the industry baseline. It covers commercial or institutional trampoline courts located in trampoline parks, family entertainment centers, gyms, and similar venues. Its scope explicitly excludes consumer trampolines, professional-exhibition trampolines, and stand-alone units with a bed area under 37,000 in² using mechanical harness systems. The standard is organized into sections on quality/manufacture, general design, major modifications, information plates, certifications, performance criteria, classification of injuries and illnesses, notification requirements, manufacturer responsibilities, owner/operator responsibilities, patron education, patron responsibility, and children's zones.

The Four Independent Duty Categories in a Trampoline Park Case

In every trampoline park case I have worked or reviewed, the operator owed four categories of duty independent of user conduct. Each has its own written rules, its own paper trail, and its own negligence-per-se count where state law has adopted F2970.

1. Design and Installation of the Court

• Pad coverage of frame and springs. F2970 requires the court perimeter, spring beds, and frame surfaces to be padded to specification. Missing, torn, or displaced pads at the incident location are the most common physical-evidence finding.
• Spring integrity and pattern. Broken, sagging, or missing springs alter the rebound characteristic of adjacent mats and produce disproportionate lift on unsuspecting jumpers.
• Foam pit depth, fill, and entry padding. Under-filled or compacted foam pits are the most common source of catastrophic pit injuries. The standard specifies fill volume and requires periodic re-fluffing.
• Ninja and obstacle courses. Attachments to the base trampoline system (climbing walls, ninja obstacle courses, battle beams, dodgeball courts, slam-dunk lanes, tumble tracks) each have their own performance and padding criteria.
• Wall runs and vertical features. Any wall the patron is invited to run up requires specific padding, angle, and clearance treatment.
• Court-to-court transitions. The perimeter transitions from one court to another (or to a foam pit) are the highest-risk geometry in the facility. The standard treats these transitions with specific padding, signage, and often attendant staffing.

2. Attendant Staffing and Training

• Attendant-to-jumper ratios. F2970 addresses staffing of the trampoline court in a manner that requires attendants in numbers sufficient to enforce the rules. Most operators write a specific ratio into their SOP; whether that ratio was actually staffed on the incident date is the first discovery ask.
• Attendant training. The IATP training curriculum (or the operator's equivalent) should be documented for every attendant on shift, with dates of initial training, refresher training, and evaluation.
• Attendant positioning. Attendants must be positioned to see the courts they are supervising. Sight-line diagrams and incident-date staffing maps are discoverable.
• Authority to enforce. Attendants must have authority to remove non-compliant jumpers, close courts, and pause operations. Whether they exercised that authority on the incident date is a jury question.

3. Patron Education and Rule Enforcement

• Pre-jump education. F2970 requires patron education prior to first use, covering one-jumper-per-mat, no double-bouncing, no somersaults or flips except where specifically authorized, no entering an occupied court, and use of court entry and exit as designated.
• Signage. Court-specific signage covering rules and hazards must be visible from the entry point.
• Height, age, and weight enforcement. Children's zones (F2970 § 19) are age- and height-segregated, and adult zones must exclude patrons below the applicable size threshold.
• One jumper per mat. Multi-jumper use is the mechanism the AAP identifies with roughly 75% of trampoline injuries, and the lighter jumper is disproportionately the one hurt in a double-bounce. Enforcement is the attendant's job.

4. Injury Recording and Notification

• Injury logging. F2970 § 13 classifies injuries and illnesses; § 14 addresses notification. The operator's incident log for the 24 months preceding the incident is a fruitful discovery target for foreseeability.
• Manufacturer notification. Serious injuries and deaths trigger manufacturer notification obligations under the standard, and CPSC § 15(b) notification obligations under the CPSA (trampolines are still CPSC-covered).
• Insurance and public-authority reporting. Most state statutes require prompt notice to the state amusement authority for injuries meeting a defined severity threshold.

The AAP Overlay

The American Academy of Pediatrics 2012 policy statement on trampoline safety in childhood and adolescence recommended against recreational trampoline use, including at commercial trampoline parks, and specifically noted that park rules "may not be consistent with the AAP guidelines." The AAP policy is not a legal standard, but it is admissible as authoritative literature under Federal Rule of Evidence 803(18), and it is what the pediatric plaintiff's treating physician will cite in the deposition.

The Trampoline-Park Preservation List

Within the first two weeks of retention:

• All park video from the incident court and from all adjacent courts, at native resolution, for a window of at least 60 minutes before and after the incident
• Attendant sign-in sheets and time-clock records for the shift
• Attendant training files for every attendant on shift, including IATP certification if applicable
• The operator's staffing SOP and attendant-to-jumper ratio requirements
• Point-of-sale records for jumpers on the courts at the time of the incident (to reconstruct actual occupancy and to identify witnesses)
• Signed waivers and reservation records for the incident jumper and adjacent jumpers
• All ASTM F2970 compliance documentation, including manufacturer's information plates for each court
• Incident log for the preceding 24 months, categorized by court
• Maintenance logs, spring-inspection records, pad-replacement records, foam-pit fill records
• Insurance-carrier loss-control reports and inspection reports for the facility
• The certificate of occupancy and any fire-marshal occupancy calculations
• All prior citations, warnings, or corrective-action notices from any inspecting authority

Bounce Houses and Inflatables: Wind, Anchor, and Occupancy

Bounce houses are fabric pressure vessels that a manufacturer engineered against a specific wind load, a specific occupancy, and a specific anchor plan. Every catastrophic bounce-house case I have ever reviewed comes down to one or more of those three parameters being ignored on the day the injury occurred.

The Governing Standard: ASTM F2374

ASTM F2374, Standard Practice for Design, Manufacture, Installation, Operation, Maintenance and Inspection of Air-Supported Structures, Air-Inflated Structures, and Air-Inflated Attractions, is the industry standard for commercial inflatables. F2729 is its consumer analog for home-use inflatable enclosures. Both are voluntary until adopted, and most states have not adopted them by name, which is why the case is often tried against F2374 as industry practice rather than as statute.

The Wind Rule Every Case Turns On

F2374 § 5.6.4 requires that a bounce house be designed to a maximum allowed operational wind speed of at least 25 mph (11.1 m/s) with highest sustained gusts over a 3-second period. A higher operational wind speed is not permitted unless the anchorage has been verified by a professional engineer. The maximum operating wind speed shall be at least 5 mph (2.2 m/s) lower than the wind speed for which anchoring was designed. Where the manufacturer has not specified a limit, F2374 § 7.5.5.3(2)(a) defaults the operator to a maximum sustained wind speed of 15 mph.

In practice, operators are working against up to three different ASTM wind thresholds: 15 mph sustained (default), 20 mph (5-mph margin under a 25-mph anchor design), and 25 mph gust (the design assumption). The device must carry an information plate stating the wind speed limit and other restrictions.

The consumer standard, F2729, requires anchoring for outdoor home-use inflatables to withstand a minimum Beaufort scale 6 wind (also 11.1 m/s, or 25 mph), with manufacturer instructions specifying anchor method, number of anchor points, soil-type considerations, and driving procedure.

Reconstructing Wind on the Incident Date

Wind reconstruction for an inflatable case is done from the nearest ASOS or AWOS station (usually a nearby airport), from Mesonet data where available, and from doorbell, storefront, and street-camera video capturing flag or tree behavior. The peer-reviewed study of wind-related bounce-house incidents (Bulletin of the American Meteorological Society, 2022) documented 132 wind incidents worldwide from 2000 to 2021, producing at least 479 injuries and at least 28 deaths, and specifically criticized commercial operators for operating above ASTM thresholds. Maryland is one of the few states that has incorporated a numerical wind threshold into its regulation (25 mph, matching F2374).

The Anchor Rule

Anchoring is design-specified. Stakes are for soft ground; sandbags or ballast are for hard surfaces (asphalt, concrete, sports courts). The manufacturer's manual will specify the number of anchor points, the anchor pull-out load, the stake length, and (for sandbag ballast) the weight per point. In practice, ballast is chronically under-provided at parking-lot and paved-surface setups because the crew arrived without enough. That crew's shortage is a discoverable fact through the rental company's inventory records and the setup crew's testimony.

Occupancy

Every commercial bounce house carries a manufacturer-specified maximum number of occupants, usually broken out by age group. Enforcement of that number is the attendant's job. Over-occupancy is the second most common finding after inadequate anchor.

Blower and Deflation

A bounce house is a dynamic structure. If the blower fails or is unplugged, the house deflates around whoever is inside it. Positive-pressure blowers must be running for the duration of occupancy; the operator must confirm blower operation as part of pre-inflation and per-shift checks.

The Rental Company Duties

• Site suitability check. The rental company must confirm before setup that the site can accommodate the inflatable's footprint plus its impact zone, that the anchoring surface is appropriate, that the setup is clear of overhead obstructions (power lines, tree limbs), and that the ground is level within the manufacturer's specification.
• Anchoring provision. The rental company must arrive with enough stakes or ballast to anchor the unit to the manufacturer's specification for the surface type. If the site turns out to be paved and the crew brought stakes only, the correct response is to decline the setup, not to improvise.
• Operator provision or instruction. The rental company must either provide a trained operator or provide, in writing, sufficient instruction to a designated adult (with signed acknowledgment) covering blower operation, occupancy limits, wind thresholds, and evacuation procedure.
• Wind briefing. The rental company must communicate the applicable wind threshold, in writing, and confirm the operator knows how to monitor and when to evacuate.
• Recall check. Before delivery, the rental company must verify that the unit is not subject to any active CPSC recall.

The Bounce-House Preservation List

• The inflatable itself, uncleaned, preserved intact, along with its blower, anchor stakes, straps, and ballast bags
• The manufacturer's information plate, operating manual, and setup instructions
• The rental agreement and site-check form
• The rental company's inventory of stakes, straps, ballast, and blowers as of the incident date
• All ASOS and AWOS wind observations for the day at the nearest available stations
• Doorbell, storefront, and traffic-camera video within visible range of the setup
• Photographs and drone imagery of the setup site, showing anchor pattern and surface type
• The rental company's training file for the delivery crew
• All prior incident reports on the same inflatable SKU (from CPSC, the manufacturer, and the rental company)
• Any manufacturer service bulletins or recalls covering the SKU

Waivers, Arbitration, and Minors

Every trampoline park, ropes course, go-kart track, and inflatable-rental operator in the country hands its patrons a document at the front counter (increasingly on a kiosk or a phone) that purports to release the operator from all liability for negligence, and increasingly to compel arbitration of any dispute. That document does less than the defense usually hopes and more than the plaintiff usually assumes. Both sides need to understand it before signing the retainer.

Exculpatory Waivers: The Uneven Landscape

State law on the enforceability of pre-injury waivers is famously non-uniform. Broadly:

• States that generally enforce well-drafted recreational waivers: California, Colorado, Florida, Georgia, Ohio, Texas, and many others. Enforcement usually requires clear and unambiguous language, prominent placement, and consideration.
• States that void waivers of gross negligence, recklessness, or willful conduct: virtually all of the above, and effectively all states. A waiver never releases conduct beyond ordinary negligence, and pleading gross negligence with specificity is the plaintiff's principal escape valve.
• States that void waivers of a parent purporting to bind a minor child: many states, though the specifics vary widely. Even where such waivers are enforceable in some form, they usually do not bar the minor's own claim brought upon majority.
• States that void or narrowly construe recreational waivers as a matter of public policy: Virginia, Louisiana, Montana, and several others. Check the current law of the forum on the date of loss.

Arbitration Clauses in Recreational Waivers

Trampoline park and family-entertainment-center waivers increasingly include arbitration clauses, class-action waivers, and confidentiality provisions. Enforcement of these provisions against minors has been repeatedly contested in state courts, with divergent results. Common lines of attack include unconscionability (procedural and substantive), lack of parental authority to bind a minor to arbitration, and the operator's failure to comply with the Federal Arbitration Act's threshold contracting requirements. Many recent cases have found trampoline-park arbitration clauses unenforceable as to minor plaintiffs, sometimes despite the parent's signature; the case law is developing rapidly and forum-specific.

The Waiver Is Not a Consent-to-Substandard-Operation Document

Even where a waiver is fully enforceable as to ordinary negligence, it does not consent the patron to operation below the applicable ASTM standard, to a court staffed below the operator's own SOP ratio, or to an inflatable in wind above F2374's threshold. The doctrine of assumption of risk protects the operator against the inherent risks of the activity, not against the operator's departures from the standard of care.

The Practical Framework

• Read the waiver as it was on the incident date. Operators rewrite these documents; the version on the current kiosk is not necessarily the version the plaintiff signed.
• Preserve the signing metadata. Kiosk timestamp, IP address, device identifier, and image capture (many parks photograph the signer).
• Plead gross negligence with specifics. Ratio deficits, prior incidents, ignored service bulletins, and known wind conditions above threshold are the facts that get a plaintiff past a waiver defense.
• For defense: audit the waiver against current law of the forum. A poorly drafted waiver in an unfavorable forum is worse than no waiver, because it invites gross-negligence pleading without providing meaningful protection.

The Landmark File

Four files anchor most amusement, trampoline park, and inflatable litigation. Two are ride cases that changed the way restraints and operator training are litigated. One is the meteorological literature on inflatables. One is the American Academy of Pediatrics policy that every pediatric trampoline plaintiff's treating physician has read.

Deposition Question Bank

This chapter is the working library of deposition outlines I use in preparing counsel across the seven case patterns. They are organized by scenario, not by witness. You pick the scenario that fits, then map the questions onto the witnesses actually available in your case. Each scenario is written from the plaintiff's angle by default, with defense reversals in Scenario I.

The Reference Library

The documents I keep within arm's reach on every amusement, trampoline park, and inflatable case. Cited by category, not by author. Check the edition in force on the date of loss.

Federal Law and Regulation

• Consumer Product Safety Act, 15 U.S.C. § 2051 et seq., including § 2052(a)(5) (definition of consumer product and the fixed-site amusement ride exemption), § 2064 (substantial product hazards and § 15(b) reporting), and § 2068 (prohibited acts).
• Virginia Graeme Baker Pool and Spa Safety Act, 15 U.S.C. § 8001 et seq. (anti-entrapment drain covers, unblockable-drain requirements, and enforcement).
• Federal OSHA, 29 CFR Part 1910 (general industry) and Part 1926 (construction), including 1910.147 (LOTO), 1910.212 (machine guarding), 1910.28 (fall protection), 1910.146 (confined space), and 1910.1200 (hazard communication).
• Proposed National Amusement Park Ride Safety Act (H.R. 1855, 119th Congress), which would strike the fixed-site exemption from 15 U.S.C. § 2052(a)(5) and authorize CPSC activities on covered devices.
• CPSC Amusement Ride Safety Bulletins; CPSC Inflatable Amusements Deaths and Injuries Report (2015); CPSC bounce-house consumer safety guidance.

ASTM F24 Standards

• ASTM F770, Standard Practice for Ownership, Operation, Maintenance, and Inspection of Amusement Rides and Devices.
• ASTM F893, Standard Guide for Inspection of Amusement Rides and Devices.
• ASTM F1193, Standard Practice for Quality, Manufacture, and Construction of Amusement Rides and Devices.
• ASTM F2291, Standard Practice for Design of Amusement Rides and Devices (design criteria for restraints, containment, acceleration limits, loads and strengths, hydraulic, pneumatic, safety-related controls, electrical, mechanical, welding, fasteners, operator controls, documentation, coatings, and fall protection).
• ASTM F2374, Standard Practice for Design, Manufacture, Installation, Operation, Maintenance and Inspection of Air-Supported Structures, Air-Inflated Structures, and Air-Inflated Attractions (bounce houses and commercial inflatables).
• ASTM F2729, Consumer Trampoline Enclosures (home-use inflatable and trampoline enclosure anchoring and wind guidance).
• ASTM F2970, Standard Practice for Design, Manufacture, Installation, Operation, Maintenance, Inspection and Major Modification of Trampoline Courts.
• ASTM F2376, Practice for Classification, Design, Manufacture, Construction, and Operation of Water Slide Systems.
• ASTM F853, Practice for Maintenance Procedures for Underground Utilities.
• ASTM F1159, Practice for Design of Amusement Rides and Devices that are Outside the Purview of Other F24 Design Standards.
• ASTM F2137, Practice for Measuring the Dynamic Characteristics of Amusement Rides and Devices.
• ASTM F3054, Standard Guide for Training of Amusement Ride and Device Maintenance Personnel.

State Amusement-Ride Laws and Agencies

• California: Cal. Labor Code Div. 5, Ch. 8, and 8 CCR § 344.5 et seq., administered by Cal/OSHA Amusement Ride and Tramway Unit.
• Florida: §§ 616.242 and 616.245, F.S., administered by the Department of Agriculture and Consumer Services, Bureau of Fair Rides Inspection; the Tyre Sampson Act (2023).
• New Jersey: Carnival-Amusement Ride Safety Act, N.J.S.A. 5:3-31 et seq., administered by the Department of Community Affairs.
• Pennsylvania: Amusement Ride Inspection Act, 4 P.S. § 401 et seq.
• Ohio: R.C. 1711.50 et seq., administered by the Ohio Department of Agriculture.
• Texas: Ins. Code Ch. 2151, administered by the Texas Department of Insurance.
• Virginia, Maryland, Massachusetts, New York, Illinois, Colorado, Arizona: each has its own statute and administering authority. Confirm on the date of loss.
• NAARSO (National Association of Amusement Ride Safety Officials) inspector certification records.

Industry Practice and Trade Associations

• International Association of Amusement Parks and Attractions (IAAPA) safety publications and North American Fixed-Site Ride Injury Survey.
• International Association of Trampoline Parks (IATP) operator training curriculum and safety guidance.
• American Rental Association (ARA) inflatable-rental safety and operator resources.
• Amusement Industry Manufacturers and Suppliers International (AIMS) technical training materials.
• National Safety Council amusement injury data reporting.

Peer-Reviewed and Authoritative Literature

• American Academy of Pediatrics Council on Sports Medicine and Fitness, "Trampoline Safety in Childhood and Adolescence," Pediatrics (October 2012, reaffirmed thereafter).
• Bulletin of the American Meteorological Society, "Wind-Related Bounce House Incidents in Meteorological, Regulatory, and Outreach Contexts" (October 2022).
• Thompson et al., pediatric bounce-house injury trends, Pediatrics (2012).
• Peer-reviewed trampoline-park injury series in the pediatric emergency and orthopedic literature.
• Case Western Reserve Law Review analysis of the 1981 CPSA fixed-site amusement ride exemption.

Sources and Notes

This edition draws on: the Consumer Product Safety Act at 15 U.S.C. § 2051 et seq., including the fixed-site amusement ride exemption at § 2052(a)(5) added by Pub. L. No. 97-35, § 1213, 95 Stat. 703, 724 (1981); the CPSC Inflatable Amusements Deaths and Injuries Report (February 2015); CPSC amusement ride safety bulletins and bounce-house consumer safety guidance; the National Electronic Injury Surveillance System (NEISS) estimates for amusement attractions (approximately 40,142 emergency-department-treated injuries in 2023) and for trampolines (approximately 98,000 emergency-department visits in 2009, of which approximately 3,100 required hospitalization); Toy-Safety.org/W.A.T.C.H. summer hazards summary (bounce-house wind incident and injury totals for 2000-2021 and amusement-ride death totals for 2010-2018); the American Academy of Pediatrics Council on Sports Medicine and Fitness policy statement "Trampoline Safety in Childhood and Adolescence," Pediatrics (October 2012); the peer-reviewed prospective pediatric trampoline-fracture series published in the Journal of Pediatric Emergency and Intensive Care Medicine; the peer-reviewed study "Wind-Related Bounce House Incidents in Meteorological, Regulatory, and Outreach Contexts," Bulletin of the American Meteorological Society (October 2022); ASTM International standards under Committee F24 (F770, F893, F1193, F2291, F2374, F2729, F2970, F2376, F853, F1159, F2137, F3054); state amusement-ride statutes and administering agencies as cited in Chapter 13; the CPSC and Kentucky Department of Agriculture record of the June 21, 2007 Superman Tower of Power incident at Six Flags Kentucky Kingdom (Lassiter matter); public court and regulatory records of the March 24, 2022 Orlando FreeFall incident at ICON Park (Sampson matter), the Florida forensic engineering field investigation report, the Tyre Sampson Act (2023), the pretrial settlements with ICON Park and Orlando Eagle Drop Slingshot, and the December 5, 2024 verdict of $310 million against Funtime Handels-GmbH; the Case Western Reserve Law Review analysis of the CPSA fixed-site amusement ride exemption; and the Arnold & Porter CPSC Desk Reference on Section 15 of the Consumer Product Safety Act. Nothing in this book is legal advice; standards must be checked in the edition in force on the date of loss, and state laws must be confirmed as they existed in the forum on that date.

Steve Wolf

Steve Wolf is an expert witness and safety consultant in amusement, stunt, special-effects, pyrotechnic, firearms, and fire matters. He is a hands-on practitioner: designer, coordinator, and operator of stunts, effects, and rigged systems for major studios and productions, including Disney, Warner Bros., Paramount, and Universal. He holds an ATF Class 20 explosives license, special-effects and pyrotechnic operator licenses, and a flame-effect operator license. He has designed and executed effects and stunts in front of paying audiences, and he has trained and licensed professionals to do the same.

Wolf is a member of the Pyrotechnics Guild International and IATSE, and he founded a licensed pyrotechnician training school. He has written eleven patents and authored twenty-seven books, and he hosts "The Fire Break" podcast on fire and pyrotechnic safety. He served as an expert witness in the on-set shooting investigation of the film Rust. In more than two decades of expert-witness engagements, civil and criminal, plaintiff and defense, he has been retained in matters ranging from single-incident injury cases to multi-plaintiff mass torts, and has testified in state and federal courts across the country. He is a graduate of Columbia University.

Books in the Wolf Safety Series include Firearm Defect Litigation, A Guide to Climbing Gym, Zipline, and Ropes Course Litigation, Guide to Litigating Fireworks and Pyrotechnics Cases, An Attorney's Guide to Litigating Entertainment Industry Cases, Firearm Handling and Use-of-Force Litigation, Litigating SCUBA, Drowning, and Maritime Injury Cases, Firearms Safety On Set, The Practical Effects Bible, Practice Safe Sets, The Secret Science Behind Movie Stunts and Special Effects, Deadly Hospital Mistakes, Bomb Recognition and Response for Civilians, A Day in the Life of a Stunt Person, The Smart Citizen's Guide to Concealed Carry, Getting Your Pyro License, The Expert Witness' Guide to Being a Great Expert Witness, Writing Patents in the Fire Space, Dead is Dead: A Field Guide to Misallocated Fear, and The Expert Witness Field Guide to Investigating Personal Injury Cases.