D.C. Mun. Regs. tit. 15, § 2501
2501.1 No party shall provide local exchange service to the public in the District of Columbia, regardless of the facilities used, without first receiving certification from the Commission to provide such service. All parties seeking a certificate must begin providing service to customers in the District of Columbia within five (5) years from the date that the certificate is issued in accordance with Section 2514 of this chapter.
SOURCE: Final Rulemaking published at 47 DCR 2601(April 14, 2000); as amended by Final Rulemaking published at 61 DCR 9863 (September 26, 2014).