D.C. Mun. Regs. tit. 26, r. 26-A3802
Papers required or permitted to be filed under this chapter shall be filed by delivery of an original and two copies to the Department of Insurance and Securities Regulation, 810 First Street, NE, Suite 701, Washington, D.C. 20002, or such other places as the Commissioner may designate. Unless specifically authorized by the Commissioner or a designated hearing officer, no filings may be made by telefax or electronic mail.
Unless otherwise specifically provided by law or these rules, computation of any time period prescribed by these rules or by an order of the Commissioner begins with the first day following the act or event that initiates the time period. If the last day of the time period so computed is a Saturday, Sunday, District of Columbia holiday, or any other day on which the Department is closed, in which event the period runs until the end of the next business day.
If a notice or other filing is served by mail and the party served is entitled or required to take some action within a prescribed time period after service:
Except in the case of jurisdictional time periods prescribed by statute, when an act is required or allowed to be done at or within a specific time, the Commissioner on his or her own motion, for good shown, may order the period enlarged.
Except in the case of jurisdictional time periods prescribed by statute, the Commissioner, at his or her discretion, may order an enlargement of time made pursuant to a motion before or after the expiration of the period proscribed, for good cause shown.
D.C. Mun. Regs. tit. 26, r. 26-A3802