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89 FR 47468

SIP Approval: Kentucky (revisions to geographical boundary description and attainment status designation for the Henderson-Webster 2010 primary sulfur dioxide nonattainment area). 

89 FR 47474

SIP Proposal: District of Columbia, Maryland, and Virginia (revisions to motor vehicle emissions budgets and onroad and nonroad mobile emissions for volatile organic compounds and nitrogen oxides for years 2025 and 2030).