Public water systems: If a professional operator holds a certification of the level below they may be the professional operator of record of those public water systems marked with an "X" below:
Classification of system | Class A/limited class A water supply professional operator | Class I water distribution professional operator | Class II water distribution professional operator | Class I water supply professional operator | Class II water supply professional operator | Class III water supply professional operator | Class IV water supply professional operator |
Class A public water system | x | x | x | x | x | ||
Class I water distribution | x | x | x | x | x | x | |
Class II water distribution | x | x | x | x | |||
Class I public water system | x | x | x | x | |||
Class II public water system | x | x | x | ||||
Class III public water system | x | x | |||||
Class IV public water system | x |
Sewerage systems and treatment works: If a professional operator holds a certification of the level below they may be the professional operator of record of those sewerage systems or treatment works with the classifications marked with an "X" below:
Classification of facility | Class A/limited class A wastewate works professional operator | Class I wastewater collection professional operator | Class II wastewater collection professional operator | Class I wastewater works professional operator | Class II wastewater works professional operator | Class III wastewate works professional operator | Class IV r wastewater works professional operator |
Class A treatment works | x | x | x | x | x | ||
Class I sewerage system | x | x | x | x | x | x | |
Class II sewerage system | x | x | x | x | |||
Class I treatment works | x | x | x | x | |||
Class II treatment works | x | x | x | ||||
Class III treatment works | x | x | |||||
Class IV treatment works | x |
Drinking Water Certificate Hierarchy Table
Class IV water supply | |||
Class III water supply | |||
Class II water supply | |||
Class I water supply | Class II water distribution | ||
Class A water supply | Class I water distribution | Class I water distribution | |
Limited class A water supply |
Wastewater Certificate Hierarchy Table
Class IV wastewater treatment | |||
Class III wastewater treatment | |||
Class II wastewater treatment | |||
Class I wastewater treatment | Class II wastewater collection | ||
Class A wastewater treatment | Class I wastewater collection | Class I wastewater collection | |
Limited class A wastewater treatment |
Ohio Admin. Code 3745-7-05
Five Year Review (FYR) Dates: 4/2/2018 and 08/15/2023
Promulgated Under: 119.03
Statutory Authority: 6111.46, 6109.04
Rule Amplifies: 6109.04, 6111.46
Prior Effective Dates: 2/1/64, 4/17/86, 1/1/99, 2/12/01, 12/21/06, 02/23/12