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Office of Quality Assurance (OQA)

Pay your Laboratory Certification Invoice on line by e-check- free of charge or a credit card with a convenience fee of 2.3% of the amount being charged + $0.50 at:  - select Pay a Paper Invoice

About Us
The Office of Quality Assurance (OQA) certifies approximately 800 laboratories granting nearly 125,000 certifications each year. Certification is offered through both the state Environmental Laboratory Certification Program and the state run National Environmental Laboratory Accreditation Program.

The OQA also administers the Department's Quality Assurance Program. It has the responsibility to ensure that environmental data is generated, compiled and reviewed using specific quality assurance / quality control (QA/QC) procedures. These procedures help to ensure that data is of documented quality and suitable for its intended use.

These QA/QC requirements are based on Title 40 Code of Federal Regulations Parts 31 and 35 which lists both general and specific requirements for a state's environmental program and acceptable quality assurance for federally funded programs.

What We Do
The Office of Quality Assurance performs the following activities to ensure certification is granted in accordance with the state Environmental Laboratory Certification Program and/or the National Environmental Laboratory Accreditation Program:

  • Review of the Certification application
  • Audit and Approval of a laboratories' quality system and technical methodologies
  • Data Review
  • Annual recertification

Office of Quality Assurance Program Specific Information

A number of useful resources and links for the Office of Quality Assurance Program can be found below.

Laboratory Certification Programs

Quality Assurance Program

Proficiency Testing (PT) Samples

Private Well Testing Act (PWTA)

Environmental Laboratory Advisory Committee (ELAC)

OQA Email Announcements

OQA Staff Directory

OQA Bulletin Board

Frequently Asked Questions

Related Links

Certified Laboratories

401 East State Street
P.O. Box 420, Mail Code 401-02D
Trenton, New Jersey 08625-0420
Phone: (609) 292-3950
Fax: (609) 777-1774


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Last Updated: August 12, 2022