(a) Superannuation annuity.--An active or an inactive member who attains superannuation age shall be entitled to receive a superannuation annuity upon termination of service and filing of a proper application. All members must begin receiving a superannuation annuity by the member's required beginning date.
(b) Withdrawal annuity.--
(1) A vestee in Class T-C or Class T-D with five or more eligibility points or an active or inactive Class T-C or Class T-D member who terminates school service having five or more eligibility points shall, upon filing a proper application, be entitled to receive an early annuity.
(2) A vestee in Class T-E or Class T-F with ten or more eligibility points or an active or inactive Class T-E or Class T-F member who terminates school service having ten or more eligibility points shall, upon filing a proper application, be entitled to receive an early annuity.
(3) A vestee in Class T-G or Class T-H with ten or more eligibility points or an active or inactive Class T-G or Class T-H member who terminates school service having ten or more eligibility points shall, upon filing a proper application, be entitled to receive an early annuity.
(c) Disability annuity.--An active or inactive member who has credit for at least five years of service shall, upon filing of a proper application, be entitled to a disability annuity if he becomes mentally or physically incapable of continuing to perform the duties for which he is employed and qualifies for an annuity in accordance with the provisions of section 8505(c)(1) (relating to duties of board regarding applications and elections of members and participants).