US lawDistrict of ColumbiaRegulationsTitle 22-B โ HEALTHChapter 22-B68 โ LICENSING USERS OF RADIOACTIVE MATERIAL680922-B DCMR 68096809. RESERVEDLast amended: 2006Length: 13 wordsOfficial source Cite as D.C. Mun. Regs. tit. 22-B, ยง 68096809 RESERVED SOURCE: Final Rulemaking published at 53 DCR 3721 (May 5, 2006).Previous22-B DCMR 6808Next22-B DCMR 6810