D.C. Mun. Regs. tit. 29, § 339
339.1 Each aide or volunteer in a Child Development Center shall work under the direct supervision of a teacher, assistant teacher, group leader, assistant group leader, or Center Director at all times.
339.2 The duties of each aide or volunteer in a center shall include the following:
339.3 The Facility shall ensure that no aide or volunteer has sole responsibility for a group or classroom, or for the Center, at any time.
SOURCE: Final Rulemaking published at 54 DCR 003793 (April 27, 2007).