Adequacy Status of the Motor Vehicle Emissions Budget in the Fairbanks North Star Borough, Alaska Submitted 2006 24-Hour PM2.5 NAAQS Serious Area and 189(d) Plan

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-R10-OAR-2024-0595; FRL-12391-01-R10] AGENCY: Environmental Protection Agency (EPA). ACTION: Notice of adequacy. SUMMARY: The Environmental Protection Agency (EPA) is notifying the public that we have found the motor vehicle emissions budgets adequate for transportation conformity purposes for the Fairbanks North Star Borough's 2006 24-hour fine particulate matter (PM 2.5 ) nonattainment area. The budgets were submitted on December 4, 2024, as part of Alaska's state implementation plan revisions (Fairbanks Revised 189(d) Plan). As a result of our finding, these budgets must be used when determining ( printed page 19424) conformity of the Fairbanks transportation plan and transportation improvement program. DATES: This finding is effective May 23, 2025. FOR FURTHER INFORMATION CONTACT: Tess Bloom, 1200 6th Avenue, Suite 155, Seattle, WA 98101; bloom.tess@epa.gov or 206-553-6362. SUPPLEMENTARY INFORMATION: Throughout this document, “we” and “our” refer to the EPA. This document is simply an announcement of a finding that we have already made. The EPA Region 10 issued a letter on April 8, 2025, to the Alaska Department of Environmental Conservation stating that the PM 2.5 motor vehicle emissions budgets, submitted in the Fairbanks Revised 189(d) Plan, are adequate. The motor vehicle emissions budgets that we have determined are adequate for transportation conformity purposes are provided in the following …