Approval and Promulgation of Air Quality Implementation Plans; Maryland; Revisions to the Control of Iron and Steel Production Installations

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EPA proposes to approve the State Implementation Plan (SIP) revisions submitted by the State of Maryland for the purpose of amending the applicable test methods for use at iron and steel facilities. The revisions also establish a visible emission standard for Basic Oxygen Furnace (BOF) Shops at integrated steel mills. Finally the revisions remove certain obsolete requirements related to coke ovens and hearth furnaces. In the Final Rules section of this Federal Register, EPA is approving the State's SIP submittals as a direct final rule without prior proposal because the Agency views these as noncontroversial submittals and anticipates no adverse comments. A more detailed description of the state submittals and EPA's evaluation are included in a Technical Support Document (TSD) prepared in support of this rulemaking action. A copy of the TSD is available, upon request, from the EPA Regional Office listed in the ADDRESSES section of this document. 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 If EPA receives adverse comments, the direct final rule will be withdrawn and all public comments received will be addressed in a subsequen