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.
In New York, where seat belt use became mandatory January 1, 1985, seat belt use rates increased from 16% before the law to 57% 4 months after the law; fatalities decreased 19%, despite a modest increase in mileage driven (4).