Who issues water and wastewater operator certifications in New York?

In New York, operator certifications are issued by NYS Department of Health (drinking water); NYS Department of Environmental Conservation (wastewater).

Who administers the New York operator certification exam?

New York exams are administered by NYS DOH / DEC (in-house exams).

How often do I have to renew my New York operator certification?

New York certifications renew on a 3 years cycle. Wastewater (DEC): continuing-education contact hours required per 3-year cycle; drinking water renewal tied to approved training.

State certification hub

New York Water & Wastewater Operator Certification

Everything you need to get certified as an operator in New York — the certifying agency, exam logistics, grade levels, and renewal rules.

Photo: U.S. EPA (public domain)

Applied math is a significant part of the New York operator exam.

Practicing calculations like dosage, detention time, and loading before test day is one of the most effective ways to prepare, alongside reviewing your state’s official exam content outline.

Certification at a glance

Certifying agency	NYS Department of Health (drinking water); NYS Department of Environmental Conservation (wastewater)
Exam administered by	NYS DOH / DEC (in-house exams)
Renewal cycle	3 years
Continuing education	Wastewater (DEC): continuing-education contact hours required per 3-year cycle; drinking water renewal tied to approved training.
Official program	Visit the NY agency site →

How certification works in New York

New York splits certification between two agencies: the Department of Health for drinking-water treatment and distribution, and the Department of Environmental Conservation for wastewater and collection. Drinking-water grade letters depend on the water source and treatment type.

Grade nomenclature in New York

How New York's levels map to the national Grade 1–4 model.

Discipline	Grade 1	Grade 2	Grade 3	Grade 4
Water Treatment	IA	IIA	IIIA	IVA
Water Distribution	D	C	B	A
Wastewater Treatment	Grade 1A	Grade 2A	Grade 3A	Grade 4A
Collection Systems	Grade 1	Grade 2	Grade 3	Grade 4

Certifications in New York

Water TreatmentCertification for operators who treat drinking water at surface or groundwater plants.New York treatment exam →

Water DistributionCertification for operators who maintain the pipes, pumps, and storage that deliver drinking water.New York distribution exam →

Wastewater TreatmentCertification for operators who treat municipal and industrial wastewater before discharge.New York wastewater exam →

Collection SystemsCertification for operators who maintain sewers and lift stations that convey wastewater.New York collection exam →

Frequently asked questions

Who issues water and wastewater operator certifications in New York?: In New York, operator certifications are issued by NYS Department of Health (drinking water); NYS Department of Environmental Conservation (wastewater).
Who administers the New York operator certification exam?: New York exams are administered by NYS DOH / DEC (in-house exams).
How often do I have to renew my New York operator certification?: New York certifications renew on a 3 years cycle. Wastewater (DEC): continuing-education contact hours required per 3-year cycle; drinking water renewal tied to approved training.