Cal. Gov. Code § 20632

For state employees in classifications designated by the Director of the Department of Personnel Administration who are also excluded from, or otherwise not subject to, collective bargaining, and for employees in bargaining units for which a memorandum of understanding has been agreed to by the state employer and the recognized employee organization to become subject to this section, compensation for uniforms shall not constitute “compensation” for the purposes of the computation of retirement contributions by employees and the state or for the purposes of the calculation of retirement benefits.