Upon declaring the existence of an electricity emergency, the governor, with the advice of the energy policy committee, shall select and implement any combination of the procedures specified in ARM 14.8.219, ARM 14.8.220, and ARM 14.8.221 as he considers appropriate. The governor may modify any procedure as he considers necessary or as the circumstances of the electricity supply emergency change. Any energy supply alert measures in effect at the time the energy emergency is declared shall remain effective except as ordered by the governor.