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.
Front seatbelts were mandatory in all cars sold in Australia after January 1, 1969. Belts had been manufactured in Australia since the late 1950s and by 1963-64 the annual volume was more than 300,000, increasing to a million over the next half decade.