Though the national average for seat belt use is at a high of 71 percent, due mainly to a $3.7 million "Click It or Ticket" campaign which used paid advertising to encourage seat belt use, nearly 10,000 out of roughly 30,000 automobile crash deaths in 1999 were related to the failure to use seat belts.

These numbers are not reflective of individuals harmed or killed because of faulty seat belts. In fact, each year a number of car companies recall automobiles due to defects in seat belt design.

The purpose of wearing a seat belt is so that it can prevent or minimize what is called the second collision. The first collision is when the vehicle makes an impact with another vehicle or object. The driver or passenger of the vehicle is either ejected from the vehicle or is injured because of impact with a car's interior, which occurs in the second collision. Seat belt use helps protect a car's occupants from fatal second collisions with a vehicle's windshield, steering wheel, or roof.

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