D.C. Mun. Regs. tit. 11-Y, § 409
409.1 The order for presenting evidence and arguments at public hearings on variance and special exception applications shall be as follows:
409.2 In a special exception or a variance case, public agency representatives, parties, organization representatives, and individuals may appear as witnesses and offer evidence at a hearing.
409.3 In a special exception or a variance case, every party shall have the right to present in person or by
counsel their case by oral and documentary evidence, to submit rebuttal evidence, and to conduct such cross-examination as may be required for a full and true disclosure of the facts.
SOURCE: Final Rulemaking published at 63 DCR 2447, 3500 (March 4, 2016 – Part 2).