(a)  At its discretion, the board shall select one of the following plans to provide retirement benefits to officers and employees of the district:

(1) By contracting with the retirement system maintained pursuant to the County Employees Retirement Law of 1937 or the Public Employees’ Retirement Law.

(2) By adopting a qualified plan and tax-exempt trust pursuant to Sections 401(a) and 501(a) of the Internal Revenue Code of 1954, as amended.

(b) The adoption, terms, and conditions of any retirement system covering employees of the district represented by a labor organization shall be pursuant to the collective bargaining agreement between the labor organization and the district.

(Amended by Stats. 1987, Ch. 372, Sec. 2.)