Cal. Code Regs. tit. 17, § 1083
Laboratories approved under Section 1076 shall be inspected by a duly authorized representative of the Department, for maintenance and conduct in conformity with these regulations. When deemed advisable, the Department may send check specimens to local laboratories to evaluate the accuracy and precision of specific test performance.
1. Amendment filed 8-16-71; effective thirtieth day thereafter (Register 71, No. 34).