Approval and Promulgation of Air Quality Implementation Plans; Virginia; Update to Materials Incorporated by Reference

EPA is updating the materials that are incorporated by reference (IBR) into the Virginia State Implementation Plan (SIP). The regulations affected by this update have been previously submitted by the Virginia Department of Environmental Quality (VA DEQ) and approved by EPA. This update affects the SIP materials that are available for public inspection at the National Archives and Records Administration (NARA), the Air and Radiation Docket and Information Center located at EPA Headquarters in Washington, DC, and the EPA Regional Office.