Traffic Safety - As introduced, creates a Class B misdemeanor for failure to properly adjust headlights by a person or entity that installs tires on a passenger motor vehicle or truck that are larger in total diameter than the original equipment manufacturer's tires installed; creates a Class B misdemeanor for installing such tires so as to cause the bumper or frame to exceed the maximum heights established in present law. - Amends TCA Title 55, Chapter 9.

HB 1272 creates new traffic safety rules for vehicles under 10,000 pounds. It requires tire installers (both businesses and individuals) to properly adjust headlights when installing larger tires than the original equipment, and prohibits installing oversized tires that cause bumpers or frames to exceed height limits. Violations of either rule are Class B misdemeanors punishable by a $250 fine. The law directly affects tire installation businesses and anyone installing larger tires on passenger vehicles or light trucks.