Except as modified by this subchapter, or until changed by the Commission pursuant to this subchapter, all regulations relating to taxicabs contained in the District of Columbia Municipal Regulations shall remain in effect. Within 9 months of the appointment and confirmation of the Commission and the appointment of the chairperson, the Commission shall cause a republication of all regulations relating to taxicabs, including applicable amendments to conform the regulations to this subchapter, and revisions issued by the Commission.