Upon declaring the existence of a middle distillate energy emer-gency, the governor, with the advice of the energy policy committee, shall select and implement any combination of the procedures described in ARM 14.8.126 and ARM 14.8.127 as he considers appropriate. The governor may modify any procedure described in ARM 14.8.126 and ARM 14.8.127 as he considers necessary or as the circumstances of the middle distillate 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.