No City councilor may serve as a City employee or as a commissioner of a City department. However, a City councilor may be appointed to serve as a member of a regional board such as the Chittenden County Regional Planning Commission, the Chittenden Solid Waste Management District, or other similar board. No member of a commission provided for in this charter shall be eligible to serve as a member of any other such commission, except that a planning commissioner may be a member of a Development Review Board. No City employee may be a member of any commission having jurisdiction over the department in which he or she is employed, provided membership on the Retirement Board is permissible, should such employee be elected thereto. The Mayor may not be employed in any other City position, but may serve in all capacities specifically authorized by this charter. Provided further, this section shall not be read to preclude continued service, including reappointment, of any incumbent commissioner. (Amended 1999, No. M-14 (Adj. Sess.), § 5; 2001, No. M-11 (Adj. Sess.), § 3.)