Approval and Promulgation of Air Quality Implementation Plans; Arkansas; Prevention of Significant Deterioration and New Source Review; Economic Development Zone for Crittenden County, Arkansas; and Stage I Vapor Recovery

Résumé

EPA is proposing to approve revisions to the Arkansas State Implementation Plan (SIP) that include changes made to Arkansas regulations entitled, "Regulations of the Arkansas Plan of Implementation for Air Pollution Control" and "Nonattainment New Source Review Requirements." The proposed revisions amend the State's permitting rules in order to address revisions to the Federal New Source Review (NSR) regulations, which were promulgated by EPA on December 31, 2002 (67 FR 80186) and reconsidered with minor changes on November 7, 2003 (68 FR 63021) (collectively, these two final actions are called the "2002 NSR Reform Rules"). Prevention of Significant Deterioration (PSD) and Nonattainment NSR (NNSR) programs, together with the minor preconstruction permit program required by section 110 of the Federal Clean Air Act ("Act"), are commonly referred to as the "NSR programs." The Arkansas revised preconstruction permitting rules proposed for inclusion in the Arkansas SIP, affecting major sources and modifications to include provisions for baseline emissions calculations, an actual-to-projected-actual methodology for calculating emissions changes, options for plantwide applicability limits