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All EPA Programs that Provide Certifications

List ordered by date updated, descending.

These pages contain a list of EPA pages with the word "certification" in the title.

Outreach and Engagement on Section 401 Certification

Planned outreach and engagement information for states and tribes

Specifications and Certifications

Learn more about how WaterSense develops specifications and carries out its third party certification programs.

Professional Certification

WaterSense labeled programs for irrigation professionals assess professional competency in irrigation system design, installation and maintenance, and auditing.

Clean Water Act Section 401: State Certification of Water Quality

Federal license or permit to conduct any activity which may result in any discharge into the navigable waters shall comply with applicable State effluent limitations

Basic Information on Section 401 Certification

Provide background information on section 401

Applying Section 401 Certification to Protect Wetlands

How EPA can assist States and Tribes in taking more active roles in making wetland decisions and how States and Tribes can use their water quality standards in Section 401 certifications to protect wetlands.

Contact Information for Certification Programs and Certified Laboratories for Drinking Water

Obtain certification program information and a list of certified laboratories by choosing a state or territory from the map or list.

Certification Systems

The WaterSense Product Certification System outlines the process and procedures for the product certification to ensure that all WaterSense labeled products meet EPA's criteria for efficiency and performance.

Section 608 Technician Certification

Certifications for technicians who maintain, service, repair, or dispose of equipment that could release ozone depleting refrigerants or, after January 1, 2018, substitute refrigerants into the atmosphere.

Certification for Snowmobiles

Steps for certifying snowmobiles with EPA.

Certification for Portable Fuel Containers

Steps for certifying portable fuel containers with EPA.

Certification for Nonroad (NR) Spark-Ignition (SI) Engines

Steps for certifying small nonroad equipment and tools with EPA.

Certification for Nonroad Compression-Ignition (NRCI) Engines

Steps for certifying nonroad heavy equipment with EPA.

Certification for Marine Compression-Ignition (CI) Engines

Steps for certifying marine vessels with EPA.

Certification for Locomotives

Steps for certifying nonroad locomotives with EPA.

Certification for Electric Motorcycles

Steps for certifying an electric nonroad motorcycle with EPA.

Certification for Non-Electric Motorcycles

Steps for certifying non-electric motorcycles with EPA.

Certification for Heavy-Duty (HD) Commercial Trucks and Buses and Onroad HD Engines

Steps for certifying an onroad commercial trucks and buses with EPA.

Certification and Fuel Economy for Light-Duty Passenger Cars and Trucks

Steps for certifying an onroad passenger vehicle with EPA.

GreenChill Store Certification Trends

GreenChill Store Certification Trends

Regional Contacts for Pesticide Applicator Certification in Indian Country

Map of EPA regions and contact information for each region related to applicator certification in Indian Country.

Training for Drinking Water Laboratory Certification

Overview of EPA Chemistry and Microbiology Certification Officer Training Courses

Becoming a Certified Cryptosporidium Laboratory or State Certification Officer for Drinking Water

Summary of steps to become certified to support Cryptosporidium monitoring

2019 AQS Data Certification Training

2019 AQS Data Certification Training webinar

Section 608 Technician Certification Programs

Provides links to companies that are EPA-approved Section 608 technician certification testing organizations.

Drinking Water System Operator Training and Certification in Wyoming and on Tribal Lands in EPA Region 8

Training and sample questions and answers on topics of interest, and training and certification records for tribal system operators.

Annual Certification Data for Vehicles, Engines, and Equipment

This page provides certification data from various engine manufacturers for past and current model years

Revised Certification Standards for Pesticide Applicators

EPA has finalized stronger standards for people who apply restricted use pesticides (RUPs). These revisions to the Certification of Pesticide Applicators rule will reduce the likelihood of harm from the misapplication of toxic pesticides.