Approval and Promulgation of Air Quality Implementation Plans; Delaware, District of Columbia, Maryland, Pennsylvania, Virginia, and West Virginia; Removal of Obsolete Regulations and Updates to Citations to State Regulations Due to Recodification

EPA is taking direct final action to remove over fifty rules in the Code of Federal Regulations (CFR) at 40 CFR part 52 for Delaware, the District of Columbia, Maryland, Pennsylvania, Virginia, and West Virginia because they are unnecessary or obsolete. EPA is also taking direct final action to clarify regulations in 40 CFR part 52 to reflect updated citations of certain Virginia rules due to the Commonwealth's recodification of its regulations at the state level. These direct final actions make no substantive changes to these State Implementation Plans (SIPs) and impose no new requirements. In the proposed rules section of this Federal Register, EPA is also proposing to remove and clarify these regulations and is soliciting public comment. If adverse comments are received on the direct final rule, EPA will withdraw the portions of the final rule that triggered the comments. Any portions of the final rule for which no adverse or critical comment is received will become final after the designated period.