D.C. Mun. Regs. tit. 20, r. 20-2707
A person may apply to the Mayor for a temporary exemption from the maximum permissible noise levels or the time limits established by the Act.
If the applicant is required to obtain a building permit from the District government, he or she may include the request for a temporary exemption with the application for that permit.
The decision of the Mayor shall be in writing and shall include a statement of the reasons for the action taken.
If a temporary exemption is granted, the decision shall include the following information:
A temporary exemption shall be granted for as long as is necessary, but shall not exceed forty-five (45) days.
A notice of the issuance of a temporary exemption shall be published in the D.C. Register and shall be posted by the applicant in a conspicuous sport at the location involved for a period of our (4) consecutive days following the date of issuance.
Any person adversely affected by the issuance or denial of a temporary exemption may, within ten (10 days of the decision, request a hearing on the matter.
If the Mayor finds that a sufficient bona fide controversy exists regarding the issuance or denial of a temporary exemption, the Mayor may, in his or her discretion, hold a hearing on the matter.
The hearing shall be held as soon as practicable.
A decision by the Mayor after a hearing shall be final, subject to a de novo review by a court of competent jurisdiction.
Unless the Mayor orders otherwise, the filing of a request for a hearing shall not affect the issuance of a temporary exemption.
D.C. Mun. Regs. tit. 20, r. 20-2707