Section 106885 Of Article 3. Operator Certification Program: Water Treatment Plants And Water Distribution Systems From California Health And Safety Code >> Division 104. >> Part 1. >> Chapter 4. >> Article 3.

. (a) All persons who operate or supervise the operation of water treatment plants shall possess a valid and current water treatment operator certificate or water treatment operator-in-training certificate of appropriate grade in accordance with the regulations referred to in Section 106910.
  (b) All persons who are in responsible charge of the water distribution system of a community water system or a nontransient noncommunity water system shall possess a valid and current water distribution operator certificate of the appropriate grade in accordance with the regulations referred to in Section 106910.