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Radon Services Directory

Certified Testers:

Testers Sorted Alphabetically by Name (PDF)
Testers Sorted Alphabetically by County (PDF)

Certified Mitigators:

Mitigators Sorted Alphabetically by Name (PDF)
Mitigators Sorted Alphabetically by County (PDF)

Certified Laboratories:

Laboratories Sorted Alphabetically by Name (PDF)
Laboratories Sorted Alphabetically by County (PDF)

Above lists updated June 1, 2017

This directory contains a listing of Pennsylvania approved:

  • Certified individuals
  • Certified firms
  • DEP listed testing firm employees
    All DEP-listed Testing Firm Employees have an ID number in the 8000 series
  • DEP-listed mitigation firm employees
    All DEP-listed Mitigation Firm Employees have an ID number in the 7000 series

The coding description for the different types of radon test devices is listed below.

  • E Electret Ion Chamber
  • A Alpha Track Detector
  • C Charcoal Canister
  • CW Continuous Working Level Monitor
  • CR Continuous Radon Monitor
  • LS Liquid Scintillation

Since certification status may change, the Bureau of Radiation Protection updates these lists monthly. To verify certification, check for a current DEP ID Card and/or certification certificate.