 ADVANCE \y63 

	UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

	REGION III

1650 Arch Street

	Philadelphia, Pennsylvania 19103-2029

									May 13, 2013

Honorable Collin P. O’Mara, Secretary								 Delaware Department of
Natural Resources

  and Environmental Control

89 Kings Highway

Dover, Delaware 19901

Dear Secretary O’Mara:

On April 2, 2013, the U.S. Environmental Protection Agency (EPA)
received a revision to the Delaware State Implementation Plan (SIP) from
the Delaware Department of Natural Resources and Environmental Control. 
The SIP revision addresses the requirements of the Clean Air Act section
110 infrastructure elements for the 2010 nitrogen dioxide national
ambient air quality standards.  EPA has determined that the submittal is
administratively and technically complete, and is being reviewed to
prepare a Notice of Proposed Rulemaking (NPR). 

 

If members of your staff have any questions, they may direct them to
Rose Quinto, Office of Air Program Planning at (215) 814-2182, or at
quinto.rose@epa.gov.  She is the principal contact for this rulemaking.

Sincerely, 

							/s/

        	Diana Esher, Director

Air Protection Division 

       

cc:  Mr. Ali Mirzakhalili, DNREC

       Mr. Ronald D. Amirikian, DNREC

	Customer Service Hotline: 1-800-438-2474

