Persons who become members of the Vermont State Retirement System under this subchapter and on behalf of whom contributions are paid as provided in this subchapter shall be entitled to benefits under the Vermont State Retirement System as though they were employees of the State of Vermont. These employees shall be considered “Group F members” as defined in subdivision 455(a)(11)(E) of this title, except that:
(1) elected municipal employees shall not be subject to mandatory retirement requirements; and
(2) sheriffs and those deputy sheriffs who meet the requirements pursuant to subdivision 455(a)(11)(F)(ii) of this chapter shall be considered members of Group G.