This SAE Recommended Practice provides general installation instructions for aftermarket, universal type seat belt assemblies for installation in passenger cars, trucks, buses, and multipurpose passenger vehicles. It applies only to seat belt assemblies which are not identified by a vehicle manufacturer part number or which are not designed for a specific vehicle application.

Purpose—This SAE document is intended to provide guidance in the installation of seat belt assemblies meeting the requirements of Part 571.209 of Title 49 of the Code of Federal Regulations as established by the National Highway Traffic Safety Administration.

Field of Application—Passenger cars, trucks, buses, and multipurpose passenger vehicles (MPVs) of all gross vehicle weight classifications.

Rationale—This SAE standard provides general installation instructions for aftermarket, universal type seat belt assemblies for installation in passenger cars, trucks, buses, and multi-purpose vehicles. The scope of the SAE Belt Systems Standards Subcommittee is the design of seat belts for new passenger cars and multipurpose vehicles. SAE J800 was first issued in 1960, when the majority of passenger cars and light trucks were sold without seat belts. All new vehicles are sold now with seat belts. Some seat belts continue to be sold for use in older vehicles that were not originally supplied with seat belts. Such installations are beyond the scope and expertise of the current SAE Seat Belt Systems Standards Subcommittee. There may be a need for a standard for aftermarket seat belts, but the current subcommittee cannot judge whether the existing SAE J800 is adequate. Therefore it is recommended that this standard be changed to CANCEL.