A.
The DROP program will be available only to those members of the retirement system to whom eligibility to participate in the program has been granted pursuant to the terms of an applicable collective bargaining agreement or personal services contract. "Collective bargaining agreement" means any written agreement, supplemental agreement, memorandum of understanding, final arbitrator's decision, judicial decision of any public board or agency, by and between applicable collective bargaining associations and the City. "Personal services contract" means any written agreement, or supplemental agreement between nonunion employees and the City as authorized by City Council.
B.
Any member to whom DROP eligibility has been granted may voluntarily elect to participate in the DROP at any time after they have attained voluntary retirement age and ten or more years of credited services. The member's election to participate in the DROP shall not operate to change or in any way modify the retirement system's minimum requirement for voluntary retirement.