Any person who becomes a judge of the State Court of Fulton County on or after July 1, 2004, shall become a member of this retirement system by operation of law and shall not be a member of any other public retirement system. (Code 1981, § 47-23-50, enacted by Ga. L. 2004, p. 573, § 2; Ga. L. 2005, p. 46, § 1/HB 178; Ga. L. 2010, p. 1207, § 63/SB 436.) The 2010 amendment, effective July 1, 2010, deleted the former subsection (a) designation and deleted former subsection (b), which read: ‘‘Any person serving as a judge of the State Court of Fulton County on June 30, 2004, may make an irrevocable election to become a member of this retirement system by so notifying the board of trustees not later than December 31, 2004. The local retirement system of which such person is a member shall transfer to this retirement system all employer and employee contributions paid by or on behalf of any such member with regular interest thereon. Such member shall receive only such creditable service, not to exceed the actual years of creditable service, as that amount will warrant without creating any accrued actuarial liability to this retirement system, calculated as if the member had either elected or rejected spouses’ survivors benefits at the member’s option. Such persons shall be subject to all provisions of this chapter.’’