26 U.S.C. § 7275: Penalty for offenses relating to certain airline tickets and advertising

the amount paid for such transportation, and the taxes imposed by subsections (a) and (b) of section 4261. state such cost as the total of (A) the amount to be paid for such transportation, and (B) the taxes imposed by sections 4261(a), (b), and (c), and if any such advertising states separately the amount to be paid for such transportation or the amount of such taxes, state such total at least as prominently as the more prominently stated of the amount to be paid for such transportation or the amount of such taxes and shall describe such taxes substantially as: “user taxes to pay for airport construction and airway safety and operations”. In the case of transportation by air for which disclosure on the ticket or advertising for such transportation of the amounts paid for passenger taxes is required by subsection (a)(2) or (b)(1)(B), if such amounts are separately disclosed, it shall be unlawful for the disclosure of such amounts to include any amounts not attributable to such taxes. Nothing in this subsection shall prohibit the inclusion of amounts not attributable to the taxes imposed by subsection (a), (b), or (c) of section 4261 in the disclosure of the amount paid for transportation as required by subsection (a)(1) or (b)(1)(A), or in a separate disclosure of amounts not attributable to such taxes. Any person who violates any provision of subsection (a), (b), or (c) is, for each violation, guilty of a misdemeanor, and upon conviction thereof shall be fined not more than $100.