Cal. Welf. & Inst. Code § 9534
(f) Subject to fiscal years specified in subdivisions (b) to (e), inclusive, participating area agencies on aging that elect not to provide the community-based services specified in Chapter 7.5 (commencing with Section 9540) directly, shall provide for the services through contracts awarded on the basis of a competitive proposal or bid process, or both, that is conducted at least once every four years, except that an area agency on aging shall not be required to conduct a full competitive process if all of the following conditions are met: