US lawDistrict of ColumbiaRegulationsTitle 9 — TAXATION AND ASSESSMENTSChapter 9-4 — SALES AND USE TAXES4779 DCMR 477477. [RESERVED]ReservedLength: 2 wordsOfficial source Cite as D.C. Mun. Regs. tit. 9, § 477477 [RESERVED]Previous9 DCMR 476Next9 DCMR 478