What are the requirements for tiedown and occupant restraint products to comply with the wheelchair tiedown and occupant restraint standards (WTORS: SAE J2249 and ISO 10542)?
Although there are some differences between the US (SAE-J2249) and the ISO (10542-1/2) standards, the general requirements and test methods are essentially identical and may be summarized as follows: The standards apply to WTORS: that include all different types of wheelchair securement systems, with belt-type occupant restraint systems, with both passengers and drivers (adults only-ISO), for use in both public and private vehicles, for use with all wheelchairs including scooters, and for use with forward-facing wheelchairs in the vehicle. The standards require that: pelvic and shoulder restraints be used in the tests and recommend use of both belts during transport, especially in vehicles that have occupant restraint belts normally installed, a dynamic 30 mph (48kph) frontal-impact test be used to confirm the performance of the WTORS, the end fittings on tiedown straps meet a specific design so that the end fitting will readily latch to the mating receptacle on the transport-compliant
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