“Reinstatement” means the change in status with respect to the Defined Benefit Program under this part from a disabled or retired member to an active or inactive member and termination of one of the following:

1. (a) A service retirement allowance pursuant to Section 24208.
2. (b) A disability retirement allowance pursuant to Section 24117.
3. (c) A disability allowance pursuant to Section 24004, 24006, or 24015.
4. (d) A service retirement allowance or disability retirement allowance pursuant to Section 23404.