19-18-603. Partial service pension. (1) A member of a fire department relief association is eligible to receive a partial service pension if the member:

(a) has completed at least 10 years of active duty as a fully paid member of a fire department but has not both completed 20 years of service and reached 50 years of age as an active firefighter;

(b) is permanently separated from service;

(c) does not qualify for a disability pension under 19-18-604; and

(d) does not receive a refund of the member's contributions under 19-18-502.

(2) The right to receive the pension vests upon the firefighter's permanent separation from service, but the payments may not commence until the date the firefighter would have both reached 50 years of age and completed 20 years of service as a member of a fire department had the member's active duty not been terminated.

(3) The pension must be paid out of the disability and pension fund and must consist of monthly payments in an amount equal to the number of years of the firefighter's service divided by the number of years of service the firefighter would have had if the firefighter had remained in active duty as a member of a fire department until the date the firefighter would have both reached 50 years of age and completed 20 years of service, multiplied by one-half of the sum last received by the firefighter as a monthly compensation, excluding overtime and payments in lieu of sick leave and annual leave, for services as an active member of the fire department.

(4) If the firefighter dies after the firefighter is permanently separated from service and before the firefighter both reaches 50 years of age and would have completed 20 years of service as an active member of a fire department, the payments prescribed in subsection (3) must be made to the surviving spouse commencing on the date the firefighter would have both reached 50 years of age and completed 20 years of service as an active member of a fire department and terminating upon the surviving spouse's death or remarriage. If there is no surviving spouse or the surviving spouse dies or remarries and if the firefighter leaves one or more children who have not reached 18 years of age, the children must receive the payments until the youngest reaches 18 years of age.

(5) If the firefighter dies after both reaching 50 years of age and the date the firefighter would have completed 20 years of service as an active member of a fire department, the payments must be made to the surviving spouse or children as provided in subsection (4).

(6) The pension escalation provisions of 19-18-602 do not apply to pensions received under this section.