Document ID: EPA-R08-OAR-2022-0268-0003
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2022-05-24T04:00Z

--------------------------------------------------------------------------------
 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
--------------------------------------------------------------------------------
REGION 8
--------------------------------------------------------------------------------
1595 Wynkoop Street
--------------------------------------------------------------------------------
Denver, CO   80202-1129
--------------------------------------------------------------------------------
Phone 800-227-8917
--------------------------------------------------------------------------------
www.epa.gov/region8

Ref: 8ARD-QP

MEMORANDUM							

SUBJECT: 	Air Plan Disapproval; Wyoming; Interstate Transport of Air Pollution for the 2015          8-hour Ozone National Ambient Air Quality Standards

DATE:	May 23, 2022

FROM:	Ellen Schmitt, 	EPA, Region 8
		
TO: 		File					

There are two dockets supporting this action, EPA-R08-OAR-2022-0268 and EPA-HQ-OAR-2021-0663. Docket No. EPA-R08-OAR-2022-0268 contains information specific to Wyoming, including the notice of proposed rulemaking. Docket No. EPA-HQ-OAR-2021-0663 contains additional modeling files, emissions inventory files, technical support documents, and other relevant supporting documentation regarding interstate transport of emissions for the 2015 8-hour ozone NAAQS which are being used to support this action. All comments regarding information in either of these dockets are to be made in Docket No. EPA-R08-OAR-2022-0268.