Motor Vehicles - As enacted, revises law relative to out-of-service orders issued to commercial drivers and related penalties. - Amends TCA Title 55 and Title 65, Chapter 15.

SB 1748 requires Tennessee enforcement officers to issue out-of-service orders for commercial drivers who cannot read or speak English sufficiently to understand traffic signs, respond to officials, or complete required records - meeting federal 49 CFR 391.11(b)(2) standards. It directly affects commercial drivers and their employers, who face a $500 fine per violation (classified as a Class C misdemeanor) if a driver fails the English proficiency requirement during a safety inspection. Drivers must pass a state-administered English test to regain their license, with employers liable for associated fines. The bill amends Tennessee Code sections 55-50-403, 55-50-405, and 65-15-111 to implement these requirements, effective January 1, 2027.