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Laboratory Accreditation Program

What's New?

  • 5/2/2020 – New technical guidance documents: Guidelines for Sample Collection, Receipt, and Handling; and Microbiology Incubation Units, both available under Compliance Assistance.
  • 3/4/2020 – April 2, 2020 Laboratory Accreditation Advisory Committee meeting has been canceled.
  • 2/26/2020 – Updated: Corrective Action Report FAQ, Rev. 1 and Proficiency Testing (PT) Guidance for Laboratories, Rev. 5 documents, both available under Compliance Assistance.

Application Instructions

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