Section 89529 - Applicability of article(a) This article applies to employees of the trustees who are members of the Public Employees' Retirement System or the State Teachers' Retirement System in compensated employment on and after July 1, 1974.(b) This article also applies to a participant in the optional retirement program pursuant to Chapter 5.5 (commencing with Section 89600), provided that he or she would otherwise be eligible to participate in the Public Employees' Retirement System except for the election to participate in the optional retirement program.(c) This article does not apply to employees of the trustees who are included in the provisions of Article 6 (commencing with Section 4800) of Chapter 2 of Part 2 of Division 4 of the Labor Code.Amended by Stats. 1996, Ch. 385, Sec. 1. Effective January 1, 1997.