Emission Reduction Credit Files
Note: Applications are to be submitted to the DEP
Regional office serving you. Contact the
Philadelphia air programs for permits in those counties.
Emission Reduction Credit Registry System
Businesses interested in buying or selling emission reduction credits can now get help through the DEP's ERC registry system. (PDF)
Reciprocity Agreement Between Pennsylvania and Maryland (PDF)(1/02)
Reciprocity Agreement Between Pennsylvania and New York (PDF)(6/96)