Highways, Roads and Bridges - As introduced, requires TACIR to study transportation user fee alternatives and submit its recommendations to the chair of the committee in the house of representatives with jurisdiction over transportation issues, the chair of the transportation and safety committee of the senate, and the legislative librarian on or before January 1, 2026. - Amends TCA Title 4; Title 9; Title 54; Title 55 and Title 67.

SB 549 requires Tennessee's TACIR (Tennessee Advisory Commission on Intergovernmental Relations) to study new ways to collect transportation fees for electric and hybrid vehicles, which are reducing gas tax revenue. The study must examine fee alternatives, their benefits and challenges, and review successful programs from at least three other states. TACIR must report its findings and recommendations to key legislative committees by January 1, 2026. The bill does not create new fees but directs TACIR to analyze options to maintain road funding as vehicle efficiency increases. This affects TACIR, state agencies, and future transportation funding decisions.