Recent Updates: Federal Register Notices Published or Effective After December 31, 2019

Data is current as of December 31, 2019

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
8-Hour Ozone (2008)
12/26/2019	Denver-Boulder-Greeley-Ft. Collins-Loveland, CO (CO)
	Change to a Higher Classification (Bump-Ups)
	Final Approval
	Effective: 01/27/2020
	84 FR 70897
12/26/2019	Denver-Boulder-Greeley-Ft. Collins-Loveland, CO (CO)
	Failure to Attain by Attainment Date
	Final Approval
	Effective: 01/27/2020
	84 FR 70897

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