Recent Updates: Federal Register Notices Published or Effective After November 30, 2022

Data is current as of December 06, 2022

is displayed for notices published or effective within 30 days of the report "As of" date.
Federal Register Notices not in this Green Book will be available in reports in the next Green Book.
The "FR" links below will display Federal Register Notices from the Government Publishing Office (GPO) website.

NAAQS / Publication Date	Area Name / Action / Status / Effective Date / FRN Link
PM-2.5 (1997)
12/06/2022	Libby, MT (MT)
	Redesignation to Maintenance
	Proposed Approval
	87 FR 74577
Sulfur Dioxide (2010)
11/02/2022	Anne Arundel County and Baltimore County, MD (MD)
	Clean Data Determination/Attainment Determination
	Final Approval
	Effective: 12/02/2022
	87 FR 66086

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