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Official Website

of the Commonwealth of Pennsylvania

    The .gov means its official.

    Local, state, and federal government websites often end in .gov. Commonwealth of Pennsylvania government websites and email systems use "pennsylvania.gov" or "pa.gov" at the end of the address. Before sharing sensitive or personal information, make sure you're on an official state website. 
    department of environmental protection

    Apply for Emission Reduction Credit Registry

    Businesses interested in buying or selling emission reduction credits can now get help through the DEP's ERC registry system. 

    Apply online

    Applications

    • ERC Instructions
      Instruction for Emission Reduction Credit Registry Application (PDF)(6/99)( Word)

    Applications are to be submitted to the DEP Regional office serving you. Contact the Allegheny or Philadelphia air programs for permits in those counties.