(a) The board is hereby authorized to propose rules governing statewide addressing and mapping standards for legislative approval in accordance with the provisions of article three, chapter twenty-nine-a of this code. Emergency rules are specifically authorized for this purpose.
(b) Any rules proposed by the board must exempt from the statewide addressing and mapping standards any county or municipality that has completed city-type addressing under the authority granted in section three, article one, chapter seven of this code or otherwise.
(c) In proposing any rules, the board shall consider all relevant factors, including, but not limited to, the following:
(1) The system and costs of administering a city-type addressing system;