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About:
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Over listings upgraded December 2, 2019This directory site has a listing of Pennsylvania approved: Certified individuals Licensed companies DEP listed screening company workers All DEP-listed Testing Firm Workers have an ID number in the 8000 series DEP-listed mitigation firm staff members All DEP-listed Reduction Company Workers have an ID number in the 7000 series The coding description for the different kinds of radon examination devices is listed here.
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