An active member of the System shall accrue one eligibility point for each year of credited service as a member of Public School Employes' Retirement System or this System. In the event a member has a fractional part of a year of credited State service, as it relates to 1,650 hours, he shall be entitled to accrue a corresponding fractional portion of eligibility points in order to entitle him to benefits. In the case of a part-time State employe, eligibility points shall be accrued on the basis of time worked in relation to 1,650 hours, irrespective of the calendar period during which the member is such an employee.
4 Pa. Code § 243.9