A member is entitled to eligibility service that equals: the member’s service credit transferred from a retirement or pension system under Title 37 of this article; for a member who has transferred to the Employees’ Pension System from the Employees’ Retirement System or to the Teachers’ Pension System from the Teachers’ Retirement System, the member’s creditable service recognized under the previous system through the date before the member became a member of the current system; for a member of the Employees’ Pension System, the member’s service credit transferred from a retirement or pension system under Title 31, Subtitle 1 of this article; and for a member who has transferred between the Employees’ Pension System and the Teachers’ Pension System, the member’s eligibility service under the previous system through the date before the member became a member of the current system if the member: is not subject to the noncontributory pension benefit in both the current and previous systems; is subject to the contributory pension benefit in both the current and previous systems; is subject to the Alternate Contributory Pension Selection in both the current and previous systems; or is subject to the Reformed Contributory Pension Benefit in both the current and previous systems.