49 USC § 14505
State tax
through Pub. L. 116-282, except Pub. L. 116-260
A State or political subdivision thereof may not collect or levy a tax, fee, head charge, or other charge on—
(1) a passenger traveling in interstate commerce by motor carrier;
(2) the transportation of a passenger traveling in interstate commerce by motor carrier;
(3) the sale of passenger transportation in interstate commerce by motor carrier; or
(4) the gross receipts derived from such transportation.
Effective Date
Section effective Jan. 1, 1996, except as otherwise provided in Pub. L. 104–88, see section 2 of Pub. L. 104–88, set out as a note under section 1301 of this title.