Approval and Promulgation of Air Quality Implementation Plans; Maryland; Control of Carbon Monoxide Emissions from Basic Oxygen Furnaces

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EPA proposes to approve the State Implementation Plan (SIP) revision submitted by the State of Maryland for the purpose of replacing the existing requirements for the control of carbon monoxide (CO) emissions from basic oxygen furnaces (BOFs) at steel mills with a new CO standard for BOFs at steel mills. In the Final Rules section of this Federal Register, EPA is approving the State's SIP submittal as a direct final rule without prior proposal because the Agency views this as a noncontroversial submittal and anticipates no adverse comments. A detailed rationale for the approval is set forth in the direct final rule. If no adverse comments are received in response to this action, no further activity is contemplated. If EPA receives adverse comments, the direct final rule will be withdrawn and all public comments received will be addressed in a subsequent final rule based on this proposed rule. EPA will not institute a second comment period. Any parties interested in commenting on this action should do so at this time.