An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Maryland SIP, Carbon Monoxide Maintenance Plan Montgomery and Prince George's County

State:    Maryland
Agency:   MD-Department of the Environment
Regulation Type:   Plan
Rule #:  Maintenance Plan
Rule Title :   Carbon Monoxide Maintenance Plan for the Metropolitan Washington, D.C. Area
State Effective Date:       03/03/2004
Final Federal Register Date:   04/04/2005
Federal Register Citation #:      70 FR 16958
Superseded /Rescinded Date              
Comments:   Maryland portion of the Plan applies to a contiguous area located in Montgomery and Prince Georges Counties which is adjacent to the District of Columbia. Original SIP-effective date is 3/15/1996.  Revised Base Year Emissions Inventory using MOBILE6, became SIP-effective on 6/3/05.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.