Emission Reduction Credit Files
Note: Applications are to be submitted to the DEP Regional office serving you. Contact the Allegheny or 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 MD
Reciprocity Agreement Between Pennsylvania and Maryland (PDF)(1/02)
- Reciprocity NY
Reciprocity Agreement Between Pennsylvania and New York (PDF)(6/96)