Multiple system atrophy is a complex condition that is likely caused by the interaction of multiple genetic, environmental, and lifestyle factors. Some of these factors have been identified, but many remain unknown.
Mandatory Seatbelts According to the U.S. Department of Transportation, in July 1984, New York State passed the first mandatory seatbelt law in the nation, followed by New Jersey, Illinois, Missouri, Michigan, and New Mexico.
For '66, three lap belts were made standard in both the front and the back seat. Also, starting 2-1-66, front seat shoulder belt anchorages were made standard on the roof rails (centerpillars in the case of the El Camino and Caddy Limos) and the shoulder belts themselves became optionally available 3-1-66.