Purpose and use of seat belts

In a collision, a seat belt keeps the body close to the seat, reduces impact with the interior of the passenger compartment and limits the risk of being thrown from the vehicle. Both the driver and passengers, including those in the rear, must use it whenever travelling in a seat equipped with one. The webbing must not be twisted or modified, and the system should be checked periodically for wear and correct operation. A seat belt must be of an approved type and works together with, rather than as an alternative to, other restraint systems such as airbags.