All pleadings, motions, and other documents required to be served on any person under this chapter shall be served on that person or shall be served on the representative designated by a party, as provided in § 3812, in the manner provided in this section.
When a party has a representative of record as provided in § 3812, service shall be made upon the representative.
Notwithstanding § 904(a) of the Act (D.C. Official Code § 42-3509.04(a)) , for the purposes of this chapter, service upon any person or representative shall be completed only:
Actual receipt of service shall bar any claim of defective service, except for a claim with respect to the timeliness of service. A party that consents to service by email is responsible for monitoring its email account, including any "junk" or "spam" folders, and a party that fails to do so will not be excused from having actually received service.
Service by mail of the U.S. Postal Service shall be complete upon mailing. Service by email attachment shall be complete upon transmission by the serving party's email system, unless the party promptly receives a notice that the message has been delayed or disrupted by technical failure or defect, and the failure or defect is not within the control of the receiving party (for example, a "full mailbox" is within a receiving party's control).
Pleadings, motions, and other documents shall be served on the other party or parties prior to or at the same time as they are filed with the Commission.
Every pleading, motion, and other document filed with the Commission shall include a signed statement that it was served as required, which shall be captioned as a "certificate of service" and show the date, name of the person(s) served, address at which service was made, and the manner of service, and:
D.C. Mun. Regs. tit. 14, r. 14-3803