Air Plan Approval; District of Columbia, Maryland, and Virginia; Update of the Motor Vehicle Emissions Budgets for the Washington-MD-VA 2008 8-Hour Ozone National Ambient Air Quality Standard Maintenance Area

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Environmental Protection Agency 40 CFR Part 52 [EPA-R03-OAR-2024-0162; FRL-11869-02-R3] AGENCY: Environmental Protection Agency (EPA). ACTION: Final rule. SUMMARY: The Environmental Protection Agency (EPA) is approving state implementation plan (SIP) revisions submitted by the District of Columbia (the District), State of Maryland (MD), and Commonwealth of Virginia (VA). The revisions update the motor vehicle emissions budgets (MVEBs) and the onroad and nonroad (except for marine, airport, and railroad) mobile emissions for volatile organic compounds (VOC) and nitrogen oxides (NO X ) for the years 2025 and 2030. EPA is approving the updated MVEBs and updates to the applicable onroad and nonroad mobile emissions for VOC and NO X for the years 2025 and 2030. EPA is also approving the allocation of a portion of the safety margins for VOC and NO X in the ozone maintenance plan to the 2025 and 2030 MVEBs. The MVEBs will be available for transportation conformity purposes, in accordance with the requirements of the Clean Air Act (CAA). DATES: This final rule is effective on November 4, 2024. ADDRESSES: The EPA has established a docket for this action under Docket ID Number EPA-R03-OAR-2024-0162. All documents in the docket are listed on the www.regulations.gov website. Although listed in the index, some information is not publicly available, e.g., confidential business information (CBI) or other information whose disclosure is restricted by statute. Certain other material, such as …