Proposed GHG Prevention of Significant Deterioration Rule

U.S. Environmental Protection Agency (EPA) is proposing not to change the greenhouse gas (GHG) permitting thresholds for the Prevention of Significant Deterioration (PSD) and Title V Operating Permit programs, and also proposing steps the agency believes would streamline the permitting process for large sources. EPA has proposed not to include additional, smaller sources in the permitting program at this time. EPA will be accepting comments on the proposal for 45 days after it is published in the Federal Register.

The GHG Tailoring Rule would continue to address a group of six greenhouse gases. Under the approach maintained in the current proposal, new facilities with GHG emissions of at least 100,000 tons per year (tpy) carbon dioxide equivalent (CO2e) continue to be required to obtain PSD permits. Existing facilities that emit 100,000 tpy of CO2e and make changes increasing the GHG emissions by at least 75,000 tpy CO2e, must also obtain PSD permits. Facilities that must obtain a PSD permit, to include other regulated pollutants, must also address GHG emission increases of 75,000 tpy or more of CO2e. New and existing sources with GHG emissions above 100,000 tpy CO2e must also obtain operating permits.

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