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Laboratory Accreditation Program

What's New?

  • October 27, 2020 - The Laboratory Accreditation Advisory Committee December 1, 2020 meeting materials are available on the committee webpage.
  • October 19, 2020 – ASDWA Technical Bulletin to Laboratories Reporting PFAS Analysis Using EPA Methods 533, 537, or 537.1 added under the Procedures & Methods heading.
  • August 31, 2020 – Updated: NELAP Accreditation FAQ, Rev. 2.1, and is available under the Compliance Assistance heading.

Forms & Applications

Proficiency Testing (PT)

Procedures & Methods

Compliance Assistance

Search Environmental Laboratories

PA State Regulations

The NELAC Institute (TNI)

Related Information

Contact Us

Mailing and Physical Addresses

US Postal Service :

Department of Environmental Protection
Bureau of Laboratories
Attn: Laboratory Accreditation Program
PO Box 1467
Harrisburg, PA 17105-1467

Other modes of delivery (UPS, Fed Ex, etc):

Department of Environmental Protection
Bureau of Laboratories
Attn: Laboratory Accreditation Program
2575 Interstate Drive
Harrisburg, PA 17110-9332