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Maryland State Government Maryland Department of the Environment

Air Quality Permits

This section contains information on air quality permits to construct and operate. Instructions and general guidance documents are available as well as downloadable forms. Permit forms are available in Adobe Acrobat (.pdf) format. 


Air Quality Permits Program News

The Air Quality permits required for the Frederick Carroll Waste-to Energy project have been issued.  Please refer to MDE's homepage to reivew these permits.  

The Air Quality Permit to construct for Dominion Transmission Inc. Myersville has been issued.  The permit cover page (AMA-1) is here;  the Permit Conditions are here and the Response to Comments Document is here.  


CPCN Waivers for New Electric Generation  NEW UPDATE

On December 1, 2014 the Public Service Commission published proposed regulations in the Maryland  Register to increase the threshold for a waiver for a Certificate of Public Convenience and Necessity (CPCN) exemption for electric generators from greater than 1500 kilowatts to to greater than 2000 kilowatts (kw).  The Public Service Commission will be accepting comments on the proposed regulations until December 31, 2014.

Once this rulemaking is finalized, applicants proposing to install a new electric generator rated at 2000kw or less will no longer be required to obtain a CPCN waiver prior to obtaining an Air Quality Permit to Construct from the Air and Radiation Management Administration.

Please note, the threshold for obtaining permits to construct for electric generators remains unchanged at 373kw or greater.  Questions pertaining to this change may be directed to David Mummert, Chief, Technical Support, at, or at 410-537-3230.


New Source Performance Standards (NSPS) Alternate Public Review Procedure for Certain Sources

Beginning October 1, 2013 House Bill 95 takes affect. House Bill 95 establishes an alternate public review procedure for sources subject to public review only because they trigger EPA's New Sorce Performance Standards (NSPS). Examples would include: engines that are not emergency generators, small combined heat and power facilities, peak shavers, and boilers less than 50 MMbtu/hr that are not covered under an Air Quality General Permit to Construct.

The Department will accept comments on these permit applications for two weeks from the date they are posted on the website as indicated below.


Air Quality Permit Applications and Forms

General Permit to Construct Application Forms

Permits to Construct and Operate Application Forms

Title V Program Application Forms and General Information

Toxic Air Pollutant Regulations Assistance Documents

Asbestos Forms

X-Ray Forms and Guidance/Radioactive Materials Forms and Guidance

Emission Reduction Credits



Air Quality Permit Applications Subject to House Bill 95 Alternate Public Participation

Please submit any comments or questions on the following permit applications to Shannon Heafey at

Fort Detrick-Forest Glen Annex- The Maryland Department of the Environment, Air and Radiation Management Administration (ARMA) received a permit to construct application from the US Army Fort Detrick Forest Glen Annex on August 8, 2014 for the installation of two (2) Cleaver-Brooks dual-fired boilers, each rated at 33.5MMbtu/hr heat input capacity.  The proposed installation will be located at 503 Robert Grant Avenue, Silver Spring, MD 20910. The comment period will expire on September 26, 2014.

Horseshoe Baltimore - The Maryland Department of the Environment, Air and Radiation Management Administration  (ARMA) received a permit to construct application from CBAC Borrower LLC d/b/a Horseshoe Baltimore on August 22, 2014 for the installation of one (1) natural gas fired, non-emergency generator rated at 1609 horsepower (HP) (1149 Kilowatts (kW)) and one (1) diesel fired emergency generator rated at 685 HP (450kW). The installations are located at 2105 Haines Street Baltimore, MD 21230.  The comment period will expire on October 24, 2014.



Air Quality Permit to Construct Applications - Informational Meetings and Public Hearings

For additional information on these meetings and hearings, including inclement weather rescheduling,  or to add your name to an Interested Party List, please contact Shannon Heafey, Public Participation Coordinator, at 410-537-4433 or

June 30, 2014 7:00PM. Public Hearing for a permit to construct for Daniel G. Schuster for a portable waste concrete crusher and screen.  The hearing will take place at the Hagerstown Branch Library, 100 South Potomac Street, Hagerstown, MD 21740. 

December 1, 2014 6:00PM.  Public Hearing for a permit to construct for Targa Terminals LLC for the addition of crude oil storage and crude oil marine vessel loading operations to be located on their property at 1955 Chesapeake Avenue, Baltimore MD 21226.  The hearing will take place at the Brooklyn Branch of the Enoch Pratt Free Library, 300 East Patapsco Avenue, Baltimore MD.  Please note:  in case of inclement weather, the hearing will take place on December 8, 2014 at the same time and location. The draft permit is located here, and the tentative determination is located here.



Final Determinations for APA Permits to Construct

Name of Company Date of Issuance
Diamond Materials November 1, 2013
W.L. Gore November 8, 2013
W.L. Gore Lovett November 13, 2013
Terumo Medical Corporation December 4, 2013
Mellott Company January 3, 2014
Lafarge MidAtlantic Marriottsville February 24,2014
Lehigh Cement Company March 14, 2014
R. Bowman March 11, 2014
Lafarge Texas Quarry March 18, 2014
Holcim US April 11, 2014
Dominion Transmission Inc. Myersville June 10, 2014
Fil-Tec Corporation September 11, 2014
Mid Shore Cremation Center October 1, 2014

















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