D.C. Mun. Regs. tit. 20, § 4263
4263.1 The provisions of 40 CFR Part 263 are subject to the specific modifications in this section.
4263.2 The provisions of 40 CFR § 263.12 are modified such that transfer facilities shall be considered storage facilities and subject to full regulation under chapters 42 and 43 of this title.
4263.3 A transporter shall not park a vacuum truck, pump truck, or tanker containing hazardous waste at a transfer facility or at any other location in the District of Columbia for more than twenty-four (24) hours.
4263.4 If a vacuum truck, pump truck, or tanker containing hazardous waste is to remain in the District for more than twenty-four (24) hours, the transporter shall transfer the contents to containers meeting the requirements of 40 CFR Part 264, Subpart I.
SOURCE: Final Rulemaking published at 52 DCR 9653 (October 28, 2005); as amended by Final Rulemaking published at 70 DCR 000703 (January 20, 2023).