Cal. Health & Safety Code § 11998.2
(b) The board of supervisors of each county is encouraged to prepare and adopt a county drug and alcohol abuse master plan, pursuant to paragraph (1) of subdivision (f) of Section 11998.1, that addresses as many of the long-range goals set forth in Section 11998.1 as possible. It is the intent of the Legislature that every county master plan include quantitative outcome objectives that, at a minimum, measure progress in the areas of prevention, education, enforcement, and treatment. It is the intent of the Legislature that these objectives include measurements of:
(5) The increased number of persons successfully completing drug and alcohol abuse services.
If a county master plan is adopted, the board of supervisors or its designee shall, in conjunction with the county advisory boards as established pursuant to paragraph (2) of subdivision (f) of Section 11998.1, annually assess the progress of the county in reaching its long-range goals.