Cal. Code Regs. tit. 23, § 3670.1
(b) A person certified by the California Department of Public Health as a water treatment plant operator may operate a water recycling treatment plant at a grade level appropriate for the class of wastewater treatment plant being operated as set forth in sections 3680 and 3680.1.
(1) For the purpose of this subdivision, a water treatment plant operator certificate is equivalent to a wastewater treatment plant operator certificate as follows:
Certificate Requirements for Water Recycling Treatment Plants
Wastewater Treatment Plant Classification
Water Treatment Plant Operator Certificate
Wastewater Treatment Plant Operator Certificate
I
T1
Grade I
II
T2
Grade II
III
T3
Grade III
IV
T4
Grade IV
V
T5
Grade V
Note: Authority cited: Sections 1058 and 13627, Water Code. Reference: Sections 13625, 13627, 13627.1 and 13627.3, Water Code.
1. New section filed 6-24-92; operative 6-24-92 pursuant to Government Code section 11346.2(d) (Register 92, No. 26).
2. Amendment of section heading filed 3-27-98; operative 4-26-98 (Register 98, No. 13).
3. Amendment of section heading, section and Note filed 1-28-2013; operative 4-1-2013 (Register 2013, No. 5).