Environmental Protection Agency August 9, 2019 – Federal Register Recent Federal Regulation Documents
Results 1 - 3 of 3
Prevention of Significant Deterioration (PSD) and Nonattainment New Source Review (NNSR): Project Emissions Accounting
The Environmental Protection Agency (EPA) is proposing to revise certain New Source Review (NSR) applicability regulations to clarify the requirements that apply to sources proposing to undertake a physical or operational change (i.e., a project) under the NSR preconstruction permitting program. Under this program, an existing major source proposing to undertake a project must determine whether that project will constitute a major modification following a two-step applicability test and thus be subject to the NSR preconstruction permitting requirements. The first step is to determine if the proposed project will cause a ``significant emissions increase'' of a regulated NSR pollutant (Step 1). If the proposed project is projected to cause such an increase, the second step is to determine if there is a ``significant net emissions increase'' of that pollutant (Step 2). In this action, we are proposing to revise our NSR applicability regulations to make it clear that both emissions increases and emissions decreases that result from a given proposed project are to be considered at Step 1 of the NSR major modification applicability test. In addition, this proposal replaces and withdraws the agency's 2006 Project Netting Proposal.
Partial Approval, Partial Disapproval and Limited Approval, Limited Disapproval of Arizona Air Plan Revisions; Pinal County Air Quality Control District
The Environmental Protection Agency (EPA) is finalizing a partial approval and partial disapproval of revisions to the Pinal County Air Quality Control District (PCAQCD) portion of the Arizona State Implementation Plan (SIP). This action concerns the District's demonstration regarding reasonably available control technology (RACT) requirements and negative declarations for the 2008 8-hour ozone National Ambient Air Quality Standards (NAAQS or ``standards'') in the portion of the Phoenix-Mesa ozone nonattainment area under the jurisdiction of the PCAQCD. The EPA is also finalizing a limited approval and limited disapproval of two PCAQCD rules that regulate emissions from surface coating operations and gasoline dispensing stations that were submitted with its RACT SIP demonstration. This partial disapproval of the RACT SIP and limited disapproval of two PCAQCD rules will trigger sanctions clocks under the CAA that will be stopped if the EPA approves subsequent SIP revisions that correct the rule and RACT SIP deficiencies within 18 months of the effective date of this final action. Under the authority of the Clean Air Act (CAA or the Act), this action simultaneously approves the PCAQCD rules for surface coating operations and storage and loading of gasoline at gasoline dispensing facilities and directs Arizona to correct the rule deficiencies.
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