The purpose of the standard is to reduce deaths and injuries due to the crushing of the roof into the passenger. 216 roof crush resistance became active in 1973. The newly updated roof crush standard fmvss 216 effective from 2012 seems to answer some of the queries raised in the many debates which include the increase in the applied force from 1 5 to 3 0 times the vehicle s unloaded weight the addition to the legislative requirement of heavier vehicles between 2 7 and 4 5 tons and the improved crush procedure that includes the roof testing of both sides at platen combination angles of 5 pitch and 25 roll.
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