D.C. Mun. Regs. tit. 29, § 2341
2341.1 Key service functions of group counseling shall include, but are not limited to:
2341.2 Only an individual trained to provide addiction-focused therapies shall provide group-counseling services.
2341.3 The usual and customary size of group counseling sessions shall not exceed fifteen (15) persons per group facilitator in order to promote participation, disclosure and feedback.
SOURCE: Final Rulemaking published at 47 DCR 9341 (November 24, 2000), adopting Emergency and Proposed Rulemaking published at 47 DCR 7708, 7767 (September 22, 2000).