SUPPLEMENTARY INFORMATION:

Request for Comments

On April 11, 2023, DOE proposed to update the petroleum-equivalency factor used to calculate the fuel economy of electric vehicles (EVs). 88 FR 21525. DOE proposed that the revised PEF value apply to MY 2027 vehicles. 88 FR 21531. DOE noted that the proposed PEF value would cover the same vehicles covered by the NHTSA CAFE regulation. In the NOPR, DOE requested comments on this proposed approach. Id.

Several commenters submitted comments in response to this specific request. Specifically, Auto Innovators raised concerns related to the proposed effective date.^[1] Auto Innovators argued that because engine design and development cycles are typically much longer than three years, there are extremely limited opportunities for engine redesign for model year 2027 vehicles. Auto Innovator Comments at 17. In addition, Auto Innovators took the position that there is “insufficient lead-time” because the proposed PEF value would “require even more rapid improvements to CAFE performance,” but that “product planning decisions have already been made.” Id. Another commenter suggested that if DOE did move forward with decreased PEF value, that the decreased PEF value should not apply until after 2031.^[2]

On September 14, 2023, DOE sent letters to member companies of Auto Innovators inviting them to clarify comments regarding the effective date.^[3] DOE posted a memorandum in the docket for this rulemaking that identifies the recipients of these letters and includes a PDF of the letters. Responses to that letter will be included in the docket for this rulemaking (except information deemed to be exempt from public disclosure).

DOE is taking public comment on the same two questions that DOE posed to the Auto Innovators:

1. Identify specific situations where there is a risk that an automaker would ( printed page 67683) have lead time challenges should the NOPR be finalized as proposed.

2. Provide information, data, and associated analysis detailing specific challenges regarding to lead time.

Public Participation

DOE will accept data and information responding to this document, but no later than the date provided in the DATES section at the beginning of this document. Interested parties may submit the requested data and information using any of the methods described in the ADDRESSES section at the beginning of this document.

Submitting responses via www.regulations.gov. The www.regulations.gov web page will require you to provide your name and contact information. Your contact information will be viewable to DOE Building Technologies staff only. Your contact information will not be publicly viewable except for your first and last names, organization name (if any), and submitter representative name (if any). If your response is not processed properly because of technical difficulties, DOE will use this information to contact you. If DOE cannot read your response due to technical difficulties and cannot contact you for clarification, DOE may not be able to consider your response.

However, your contact information will be publicly viewable if you include it in the response itself or in any documents attached to your response. Any information that you do not want to be publicly viewable should not be included in your response, nor in any document attached to your response. Persons viewing responses will see only first and last names, organization names, correspondence containing responses, and any documents submitted with the responses.

Do not submit to www.regulations.gov information for which disclosure is restricted by statute, such as trade secrets and commercial or financial information (hereinafter referred to as Confidential Business Information (CBI)). Responses submitted through www.regulations.gov cannot be claimed as CBI. Responses received through the website will waive any CBI claims for the information submitted. For information on submitting CBI, see the Confidential Business Information section.

DOE processes submissions made through www.regulations.gov before posting. Normally, responses will be posted within a few days of being submitted. However, if large volumes of responses are being processed simultaneously, your response may not be viewable for up to several weeks. Please keep the tracking number that www.regulations.gov provides after you have successfully uploaded your response.

Submitting comments via email or postal mail. Responses and documents submitted via email or postal mail also will be posted to www.regulations.gov. If you do not want your personal contact information to be publicly viewable, do not include it in your response or any accompanying documents. Instead, provide your contact information in a cover letter. Include your first and last names, email address, telephone number, and optional mailing address. The cover letter will not be publicly viewable as long as it does not include any requested information.

Include contact information each time you submit responses, data, documents, and other information to DOE. If you submit via postal mail please provide all items on a CD, if feasible, in which case it is not necessary to submit printed copies. No telefacsimiles (“faxes”) will be accepted.

Responses, data, and other information submitted to DOE electronically should be provided in PDF (preferred), Microsoft Word or Excel, WordPerfect, or text (ASCII) file format. Provide documents that are not secured, that are written in English, and that are free of any defects or viruses. Documents should not contain special characters or any form of encryption and, if possible, they should carry the electronic signature of the author.

Campaign form letters. Please submit campaign form letters by the originating organization in batches of between 50 to 500 form letters per PDF or as one form letter with a list of supporters' names compiled into one or more PDFs. This reduces processing and posting time.

Confidential Business Information. Pursuant to 10 CFR 1004.11, any person submitting information that he or she believes to be confidential and exempt by law from public disclosure should submit via email two well-marked copies: one copy of the document marked “confidential” including all the information believed to be confidential, and one copy of the document marked “non-confidential” with the information believed to be confidential deleted. DOE will make its own determination about the confidential status of the information and treat it according to its determination.

It is DOE's policy that all responses may be included in the public docket, without change and as received, including any personal information provided in the comments (except information deemed to be exempt from public disclosure).

Signing Authority

This document of the Department of Energy was signed on September 26, 2023, by Jeffrey Marootian, Principal Deputy Assistant Secretary for Energy Efficiency and Renewable Energy, pursuant to delegated authority from the Secretary of Energy. That document with the original signature and date is maintained by DOE. For administrative purposes only, and in compliance with requirements of the Office of the Federal Register, the undersigned DOE Federal Register Liaison Officer has been authorized to sign and submit the document in electronic format for publication, as an official document of the Department of Energy. This administrative process in no way alters the legal effect of this document upon publication in the Federal Register .