D.C. Mun. Regs. tit. 21, § 410
410.1 The purpose of hearings held under this section is to provide the petitioner with an opportunity to appeal the decision of the General Manager pertaining to:
a) The validity of any water, sewer or groundwater sewer service charge;
b) The practicability determination made pursuant to section 207 of chapter 2 regarding metering of groundwater flows;
c) A practicability determination made pursuant to section 5403 of chapter 54 regarding the installation of backflow preventers to prevent cross connections;
d) An imminent threat determination made pursuant to section 5405 of chapter 54; and
e) A denial, suspension, or revocation of a certificate to test backflow preventers pursuant to section 5408 of chapter 54.
410.2 The rules of procedure set forth in this section shall govern the form, content and filing of requests for a hearing to contest water, sewer and groundwater service charges, interest, penalties, fees and determinations of practicability made pursuant to chapter 2.
410.3 The petitioner shall have the right to do the following:
a) Represent himself or herself or be represented by an attorney;
b) To present his or her case or defense by oral or documentary evidence;
c) To submit the evidence in rebuttal; and
d) To conduct a cross-examination as may be required for a full disclosure of the facts.
SOURCE: Final Rulemaking published at 40 DCR 1300, 1310 (February 12, 1993); as amended by Final Rulemaking published at 46 DCR 5358 (June 18, 1999); as amended by Final Rulemaking published at 48 DCR 1743(February 23, 2001).