D.C. Code § 2-118
This subchapter shall become effective 6 months from the date of their approval. The regulations and schedule of fees herein provided for shall be promulgated by the Council of the District of Columbia and the Mayor of the District of Columbia, respectively, and printed in one or more of the daily newspapers published in the said District but shall not be enforced until 30 days after such publication or until December 25, 1936. Amendments to the regulations or new or additional schedules of fees, when and as the same may be adopted, shall likewise be printed in one or more of the daily newspapers published in the said District and no penalty for violation thereof or payment of new or additional fees prescribed shall be enforced until 30 days after such publication.
D.C. Code § 2-118