D.C. Code § 32-531.13: Rules.

The Mayor, pursuant to subchapter I of Chapter 5 of Title 2, may issue rules to implement the provisions of this subchapter. If rules are promulgated, the Mayor shall submit the proposed rules to the Council for a 30-day period of review, excluding Saturdays, Sundays, legal holidays, and days of Council recess. If the Council does not approve or disapprove the proposed rules, in whole or in part, by resolution, within this 30-day review period, the proposed rules shall be deemed approved.