Comment on FR Doc # 2013-04012

EPA R04-OAR-2012-0961-0002 Were studies conducted to establish the criteria for labeling as a maintenance area? Is there something geographic and standard about this area? Are the emissions parameters constricting the water vapor potential? Are the emissions tolerances excessive considering most dealerships are manufacturing cars that use alternative energies and have done so for approximately 10 years now? In order to enhance and make healthier the air quality, basic chemistry knowledge about the different atmospheric gases plus utilizing commercial resources might yield more efficacious benefits.