Motor vehicle occupant crash protection : communication from the Secretary of Transportation transmitting a proposed final rule to amend the Federal Motor Vehicle Safety Standard on occupant restraint systems, June 30, 1977.

The existing motor vehicle safety standard for occupant crash protection in new passenger cars is amended to require the provision of "passive" restraint protection in passenger cars with wheelbases greater than 114 inches manufactured on and after September 1, 1981, in passenger cars with wheelbases greater than 100 inches on and after September 1, 1982 and in all passenger cars manufactured on or September 1, 1983.