Relating to an exemption from certain motor fuel taxes for counties in this state.

SB 677 adds a specific exemption to Texas motor fuel tax rules, allowing counties to purchase gasoline and diesel fuel without paying the tax when used for the county's own operations. This directly affects Texas counties that buy fuel for government vehicles, equipment, or facilities. The bill amends the Tax Code to include counties in the list of exempt buyers (under sections 162.104(a)(2-a) and 162.204(a)(2-a)) and creates a refund process (via new subsection 162.125(g-3)) for counties that already paid tax on such fuel. The policy change simplifies tax compliance for local governments using fuel for official duties.