(a) General rule.--A person who first becomes a school employee and an active member on or after July 1, 2019, and who is eligible to become a Class T-G member may elect to become a member of Class T-H.

(b) Time for making election.--A member must elect to become a Class T-H member by filing a written election with the board within 90 days of notification by the board that the member is eligible for the election. A school employee who is eligible to elect to become a Class T-H member who begins USERRA leave during the election period without having elected Class T-H membership may make the election within 90 days after being reemployed from USERRA leave.

(c) Effect of election.--An election to become a Class T-H member shall be irrevocable and shall commence from the original date of eligibility. A member who elects Class T-H membership shall receive Class T-H service credit on any and all future service, regardless of whether the member terminates service or has a break in service.

(d) Effect of failure to make election.--If a member fails to timely file an election to become a Class T-H member, and does not elect to become a Class DC participant under section 8305.4 (relating to election to become a Class DC participant), then the member shall be enrolled as a member of Class T-G, and the member shall never be able to elect Class T-H service, regardless of whether the member terminates service or has a break in service.