US lawDistrict of ColumbiaRegulationsTitle 20 โ ENVIRONMENTChapter 20-42 โ HAZARDOUS WASTE MANAGEMENT - STANDARDS FOR THE MANAGEMENT OF HAZARDOUS WASTE AND USED OIL420720 DCMR 42074207. RESERVEDLast amended: 2005Length: 13 wordsOfficial source Cite as D.C. Mun. Regs. tit. 20, ยง 42074207 RESERVED SOURCE: Final Rulemaking published at 52 DCR 9653 (October 28, 2005).Previous20 DCMR 4206Next20 DCMR 4208