Seat belt that required a particular technical approach would rapidly become dated as motor manufacturers would tool up for a particular standard which could not easily be changed. For example, in 1969 there were competing designs for lap and three-point seat belts, rapidly tilting seats, and airbags being developed. But as countries started to mandate seat belt restraints the global auto industry invested in the tooling and standardized exclusively on seat belts, and ignored other restraint designs such as air bags for several decades As of 2016, seat belt laws can be divided into two categories: primary and secondary. A primary seat
Subaru Legacy (first generation) wagon, regardless of the country the vehicle was sold in were equipped with ABS and rear ventilated disc brakes as standard equipment. The Japanese vehicles had rear lap belts only on the lower trim levels and 3-point outboard position lap and shoulder belts with a center rear position lap belt on all vehicles with the 2.0-liter engine. Seat belt pre-tensioners with Emergency Locking Retractors (called E.L.R.) were standard equipment in Japanese vehicles with the VZ trim package and all vehicles equipped with the turbocharged engine. Canadian spec Legacy were not fitted with automatic seat belts due to objections from the