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.
It was 25 years ago (the 1990 model year) when shoulder belts became required in the rear passenger seats of new cars, which provided much better safety for older children who were suffering from âseatbelt syndromeâ as a result of being restrained in a lap belt alone.