Abstract
A study is described which is part of a program to evaluate the effectiveness of the 1974 safety belt interlock system in increasing belt usage, and te determine owner / driver acceptance of the system. A survey of Consumer Reports readers who own 1974 model cars was conducted to determine detailed information about their reactions to the 1974 interlock and warning system, malfunction / failure of the system, comfort and convenience data, and personal data pertaining to the driver's sex, height, weight, age and education.