1. Seating systems. 49 CFR §571.207 (1999).
2. Standard: J2249: wheelchair tiedowns and occupant restraint systems-surface vehicle recommended practice;Society of Automotive Engineers,1999
3. ISO 10542 Wheelchair tiedowns and occupant restraints in motor vehicles;International Standards Organization,1997
4. WC-19 Wheelchairs used as seats in motor vehicles;American National Standards Institute ANSI/Rehabilitation Engineering Society of North America RESNA,2000
5. ISO FDIS 7176/19: Wheelchairs used as seats in motor vehicles;International Standards Organization,2000