Federal Register - "Approval and Promulgation of Air Quality State Implementation Plans; California; Chico Redesignation Request and Maintenance Plan for the 2006 24-Hour PM2.5"

Title: Approval and Promulgation of Air Quality State Implementation Plans; California; Chico Redesignation Request and Maintenance Plan for the 2006 24-Hour PM2.5 Source: Federal Register Data/Action: Environmental Protection Agency (Final Rule) Date: 7/11/2018 Text Preview: ...ENVIRONMENTAL PROTECTION AGENCY 40 CFR Parts 52 and 81 [EPA-R09-OAR-2018-0181; FRL-9980-49--Region 9] Approval and Promulgation of Air Quality State Implementation Plans; California; Chico Redesignation Request and Maintenance Plan for the 2006 24-Hour PM2.5 Standard AGENCY: Environmental Protection Agency (EPA). ACTION: Final rule. ----------------------------------------------------------------------- SUMMARY: The Environmental Protection Agency (EPA)... ...Environmental Protection Agency, Region IX, (415) 972-3964, [email protected] . SUPPLEMENTARY INFORMATION: Throughout this document, ``we,'' ``us,'' or ``our'' refer to the EPA. Table of Contents I. Background II. Today's Final Actions III. What are the effects of today's actions? IV. Statutory and Executive Order Reviews I. Background On July 18, 1997, the EPA... ...EPA is also taking final action to approve the PM 2.5 maintenance plan and the determination that contributions from motor vehicle emissions in the Chico nonattainment area are insignificant. The EPA is approving this revision because it meets the requirements of the Clean Air Act (CAA or ``the Act'') and EPA guidance for such plans. DATES: This rule is effective on August 10, 2018. ADDRESSES: The EPA has established a docket for this action under Docket ID No. EPA-R09-OAR-2018-0181...