Cal. Health and Safety Code § 106875 : California Health And Safety Code — Environmental Health — Professional Certification — Operator Certification Program: Water Treatment Plants And Water Distribution Systems — Examination and certification Date: 1 Aug 2016 TEXT PDF Current through the 2016 Legislative Session (a) The department shall examine and certify persons as to their qualifications to supervise or operate water treatment plants. The certification shall indicate the classification of water treatment plant that the person is qualified to supervise or operate. (b) The department shall examine and certify persons as to their qualifications to supervise or operate a water distribution system. The certification shall indicate the classification of distribution system that the person is qualified to supervise or operate. Ca. Health and Saf. Code § 106875 EFFECTIVE 1/1/2000. Amended October 10, 1999 (Bill Number: SB 1107) (Chapter 755).