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Proposed Rule

Standards of Performance for Stationary Compression Ignition Internal Combustion Engines

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Environmental Protection Agency (EPA).


Proposed rule; amendments.


The U.S. Environmental Protection Agency (EPA) is proposing amendments to the Standards of Performance for Stationary Compression Ignition Internal Combustion Engines. In the “Rules and Regulations” section of this Federal Register, we are publishing a direct final rule, without a prior proposed rule that revises the emission standards for particulate matter for new stationary compression ignition (CI) engines located in remote areas of Alaska. If we receive no adverse comment, we will not take further action on this proposed rule.


Comments. Comments must be received on or before August 5, 2019, or 30 days after date of public hearing, if one is requested.

Public hearing. If anyone contacts us requesting a public hearing on or before July 10, 2019, we will hold a hearing. Additional information about the hearing, if requested, will be published in a subsequent Federal Register document and posted at​stationary-engines/​new-source-performance-standards-stationary-compression-ignition-internal-0. See SUPPLEMENTARY INFORMATION for information on requesting and registering for a public hearing.


You may send comments, identified by Docket ID No. EPA-HQ-OAR-2018-0851, by any of the following methods:

  • Federal eRulemaking Portal:​ (our preferred method). Follow the online instructions for submitting comments.
  • Email: Include Docket ID No. EPA-HQ-OAR-2018-0851 in the subject line of the message.
  • Fax: (202) 566-9744. Attention Docket ID No. EPA-HQ-OAR-2018-0851.
  • Mail: U.S. Environmental Protection Agency, EPA Docket Center, Docket ID No. EPA-HQ-OAR-2018-0851, Mail Code 28221T, 1200 Start Printed Page 32115Pennsylvania Avenue NW, Washington, DC 20460.
  • Hand/Courier Delivery: EPA Docket Center, WJC West Building, Room 3334, 1301 Constitution Avenue NW, Washington, DC 20004. The Docket Center's hours of operation are 8:30 a.m.-4:30 p.m., Monday-Friday (except Federal holidays).

Instructions: All submissions received must include the Docket ID No. for this rulemaking. Comments received may be posted without change to​, including any personal information provided. For detailed instructions on sending comments and additional information on the rulemaking process, see the SUPPLEMENTARY INFORMATION section of this document.

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For questions about this proposed action, contact Melanie King, Sector Policies and Programs Division (D243-01), Office of Air Quality Planning and Standards, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711; telephone number: (919) 541-2469; fax number: (919) 541-4991; and email address:

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Public hearing. Please contact Adrian Gates at (919) 541-4860 or by email at to request a public hearing, to register to speak at the public hearing, or to inquire as to whether a public hearing will be held.

Docket. The EPA has established a docket for this rulemaking under Docket ID No. EPA-HQ-OAR-2018-0851. All documents in the docket are listed in Although listed, some information is not publicly available, e.g., Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. Certain other material, such as copyrighted material, is not placed on the internet and will be publicly available only in hard copy. Publicly available docket materials are available either electronically in or in hard copy at the EPA Docket Center, Room 3334, EPA WJC West Building, 1301 Constitution Avenue NW, Washington, DC. The Public Reading Room is open from 8:30 a.m. to 4:30 p.m., Monday through Friday, excluding legal holidays. The telephone number for the Public Reading Room is (202) 566-1744, and the telephone number for the EPA Docket Center is (202) 566-1742.

Instructions. Direct your comments to Docket ID No. EPA-HQ-OAR-2018-0851. The EPA's policy is that all comments received will be included in the public docket without change and may be made available online at​, including any personal information provided, unless the comment includes information claimed to be CBI or other information whose disclosure is restricted by statute. Do not submit information that you consider to be CBI or otherwise protected through​ or email. This type of information should be submitted by mail as discussed below.

The EPA may publish any comment received to its public docket. 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. The 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​dockets/​commenting-epa-dockets.

The​ website allows you to submit your comment anonymously, which means the EPA will not know your identity or contact information unless you provide it in the body of your comment. If you send an email comment directly to the EPA without going through​, your email address will be automatically captured and included as part of the comment that is placed in the public docket and made available on the internet. If you submit an electronic comment, the EPA recommends that you include your name and other contact information in the body of your comment and with any digital storage media you submit. If the EPA cannot read your comment due to technical difficulties and cannot contact you for clarification, the EPA may not be able to consider your comment. Electronic files should not include special characters or any form of encryption and be free of any defects or viruses. For additional information about the EPA's public docket, visit the EPA Docket Center homepage at​dockets.

Submitting CBI. Do not submit information containing CBI to the EPA through​ or email. Clearly mark the part or all of the information that you claim to be CBI. For CBI information on any digital storage media that you mail to the EPA, mark the outside of the digital storage media as CBI and then identify electronically within the digital storage media the specific information that is claimed as CBI. In addition to one complete version of the comments that includes information claimed as CBI, you must submit a copy of the comments that does not contain the information claimed as CBI directly to the public docket through the procedures outlined in Instructions above. If you submit any digital storage media that does not contain CBI, mark the outside of the digital storage media clearly that it does not contain CBI. Information not marked as CBI will be included in the public docket and the EPA's electronic public docket without prior notice. Information marked as CBI will not be disclosed except in accordance with procedures set forth in 40 Code of Federal Regulations (CFR) part 2. Send or deliver information identified as CBI only to the following address: OAQPS Document Control Officer (C404-02), OAQPS, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, Attention Docket ID No. EPA-HQ-OAR-2018-0851.

I. Direct Final Rule

A direct final rule that would make the same changes as those proposed in this notice is published in the Rules and Regulations section of this Federal Register. The EPA has published a direct final action on the amendments that are also proposed in this action because we view the amendments as noncontroversial and anticipate no significant adverse comments. The EPA has explained our reasons for these amendments in the direct final rule. If no significant adverse comments are received, no further action will be taken on the proposal, and the direct final rule will become effective as provided in that action.

If the EPA receives significant adverse comments, we will withdraw the direct final rule. The EPA will publish a timely withdrawal in the Federal Register. If the direct final rule in the Rules and Regulations section of this Federal Register is withdrawn, all comments will be addressed in a subsequent final rule based on this proposal. In such case, the EPA does not intend to institute a second comment period pertaining to the amendments on the subsequent final action. Any parties interested in commenting should do so at this time.

The amendments to the regulatory text proposed in this notice are identical to the amendments made in the direct final rule published in the Rules and Regulations section of this Federal Start Printed Page 32116Register. For further supplementary information, the detailed rationale for the proposal and the regulatory revisions, see the direct final rule published in the Rules and Regulations section of this Federal Register.

II. Statutory and Executive Order Reviews

For a complete discussion of the administrative requirements applicable to this action, see the direct final rule in the Rules and Regulations section of this Federal Register.

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Dated: June 27, 2019.

Andrew R. Wheeler,


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[FR Doc. 2019-14374 Filed 7-3-19; 8:45 am]