Final answer:
TADRA is an acronym for the Teenage & Adult Driver Responsibility Act, a law designed to promote the safety of young drivers through a graduated licensing program.
Step-by-step explanation:
The acronym TADRA stands for the Teenage & Adult Driver Responsibility Act. It is legislation that was enacted to help ensure the safety of young drivers and to provide a graduated driver's license program for teenagers. This act includes various phases that young drivers must complete before obtaining a full-privileged driver's license, often including a learner's permit phase, an intermediate license phase, and then the full license phase. The intent behind TADRA is to reduce the number of motor vehicle crashes involving teenagers by making sure they have adequate driving experience and maturity before being granted full driving privileges.