D.C. Mun. Regs. tit. 20, § 5002
5002.1 There is imposed on each railroad carrier operating in the District a fee of sixty cents ($0.60) for each railroad car that enters the District and sixty cents ($0.60) for each railroad car that exits the District, except as provided in §§ 5002.2 and 5002.3.
5002.2 There is imposed on each railroad carrier operating in the District a fee of sixty cents ($0.60) for each railroad car that transits through the District without stopping in the District.
5002.3 The fee imposed on a railroad carrier for each commuter railroad car that enters the District shall be sixty cents ($0.60), but no fee shall be imposed based on the commuter railroad car's exit from the District.
SOURCE: Final Rulemaking published at 72 DCR 013177 (November 28, 2025).