All part time or special patrolmen who have been certified under the civil service laws of the State and have obtained civil service status, in the event they become full time patrolmen, shall be given an allowance of twenty percent credit of their total part time services when entering full time employment. All present full time patrolmen who, prior to their full time employment, served part time or as special patrolmen shall also be given the same allowance for pay scale purposes. (Ord. 1967-147. Passed 9-5-67.)