The U.S. Environmental Protection Agency (EPA) will be proposing new air pollution standards this fall affecting the so-called Nine Metal Fabrication Area Sources. The Clean Air Act (CAA) requires the EPA to develop NESHAP for both major and area sources that are listed for regulation under the CAA.

If you are not aware of the regulatory background for this rule, please read the "Regulatory-Background" file below. EPA is requesting as much technical detail in comments submitted to Dr. Donna Lee Jones, Office of Air Quality Planning and Standards. Dr. Jones can be reached at 919-541-5251 or by email at jones.donnalee@epa.gov to respond to specific questions.