• No specific analytes required
  • Specify required analytes

Reference Links

Power at Your Fingertips

As your full-service proficiency testing provider, we want to save you time and stress. That's why we compiled the following list of the most commonly used regulatory agency, environmental associations, and accreditation resources in one spot.

Important TNI Links

TNI Fields of Proficiency Testing Tables (FoPTs)

TNI Method Description/Code Search

TNI Method Code Request Form


State Environmental Protection and Accreditation Links


Alabama Department of Environmental  Management

Alabama Department of Environmental  Management Water Program

Alaska Environmental Health Laboratory

Arizona Laboratory Licensure

Arkansas Laboratory Certification Program

California Environmental Laboratory  Accreditation Program

Colorado Laboratory Services Division
Connecticut Dept of Public Health

Delaware Office of Drinking Water

Florida Bureau of Public Health

Georgia Environmental Protection Division

Hawaii Department of Health

Idaho Dept. of Health and Welfare, Bureau  of Laboratories

Illinois Environmental Laboratory Accreditation Program

Indiana State Department of Health

Iowa Department of Natural Resources
Kansas Department of Health and  Environment

Kentucky Department of Environmental  Protection

Louisiana Department of Environmental  Quality

Louisiana Department of Health & Hospitals


Maine Department of Health and Human  Services

Maryland Department of Environment

Massachusetts - Department of  Environmental Protection

Michigan Department of Environmental  Quality

Minnesota Department of Health
Mississippi Department of Environmental  Quality

Missouri DNR Drinking Water Laboratory  Certification

Montana Department of Environmental  Quality

Nebraska Department of Environmental  Quality

Nevada Bureau of Safe Drinking Water

New Hampshire Environmental Laboratory  Accreditation Program

New Jersey Department of Environmental  Protection, OQA

New Mexico Department of Environment 

New York Department of Health

North Carolina DNR – Division of Water  Quality

North Carolina State Laboratory of Public  Health

North Dakota Environmental Laboratory  Certification Program


Environmental Organization Resources Links