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###### Environmental Protection Agency

          - 40 CFR Part 52
          - [EPA-R04-OAR-2017-0371; FRL-9966-46-Region 4]

# AGENCY:

Environmental Protection Agency (EPA).

# ACTION:

Proposed rule.

# SUMMARY:

                        The Environmental Protection Agency (EPA) is proposing to approve a portion of Alabama's State Implementation Plan (SIP) revision submitted by the State of Alabama, through the Alabama Department of                               ( print page 40086)                            Environmental Management (ADEM), on May 7, 2012. The portion of the revision that EPA is proposing to approve relates to the State's Prevention of Significant Deterioration (PSD) permitting regulations. In particular, the revision adds a definition of “replacement unit” and provides that a replacement unit is a type of existing emissions unit under the definition of “emissions unit.” This action is being taken pursuant to the Clean Air Act (CAA or Act).                    

# DATES:

Written comments must be received on or before September 25, 2017.

# ADDRESSES:

                        Submit your comments, identified by Docket ID No. EPA-R04-OAR-2017-0371 at                         *http://www.regulations.gov.*                         Follow the online instructions for submitting comments. Once submitted, comments cannot be edited or removed from                         *Regulations.gov*. EPA may publish any comment received to its public docket. Do not submit electronically any information you consider to be Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. Multimedia submissions (audio, video, etc.) must be accompanied by a written comment. The written comment is considered the official comment and should include discussion of all points you wish to make. EPA will generally not consider comments or comment contents located outside of the primary submission (                        *i.e.,*                         on the web, cloud, or other file sharing system). For additional submission methods, the full EPA public comment policy, information about CBI or multimedia submissions, and general guidance on making effective comments, please visit                         *http://www2.epa.gov/​dockets/​commenting-epa-dockets.*

# FOR FURTHER INFORMATION CONTACT:

                        Andres Febres of the Air Regulatory Management Section, Air Planning and Implementation Branch, Air, Pesticides and Toxics Management Division, U.S. Environmental Protection Agency, Region 4, 61 Forsyth Street SW., Atlanta, Georgia 30303-8960. Mr. Febres can be reached via telephone at (404) 562-8966 or via electronic mail at                         *febres-martinez.andres@epa.gov.*

# SUPPLEMENTARY INFORMATION:

                    In the Final Rules Section of this                     **Federal Register**                    , EPA is approving the portion of Alabama's May 7, 2012, SIP revision addressing the State's PSD program 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 and incorporated herein by reference. If no adverse comments are received in response to this rule, no further activity is contemplated. If EPA receives adverse comments, the direct final rule will be withdrawn and all adverse comments received will be addressed in a subsequent final rule based on this proposed rule. EPA will not institute a second comment period on this document. Any parties interested in commenting on this document should do so at this time.                

Dated: August 7, 2017.

V. Anne Heard,

Acting Regional Administrator, Region 4.

[FR Doc. 2017-17343 Filed 8-23-17; 8:45 am]

 BILLING CODE 6560-50-P