Site Feedback

Title 49

Displaying title 49, up to date as of 7/09/2026. Title 49 was last amended 7/06/2026.
eCFR Content

The Code of Federal Regulations (CFR) is the official legal print publication containing the codification of the general and permanent rules published in the Federal Register by the departments and agencies of the Federal Government. The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. It is not an official legal edition of the CFR.

Learn more about the eCFR, its status, and the editorial process.

§ 512.4 When requesting confidentiality, what should I submit?

Any person submitting information to NHTSA, other than information in a class identified in appendix C of this Part, and requesting that the information be withheld from public disclosure pursuant to 5 U.S.C. 552(b) shall submit the following:

(a) The materials for which confidentiality is being requested, in conformance with §§ 512.5, 512.6, and 512.7 of this part;

(b) The Certificate, in the form set out in appendix A to this part;

(c) Supporting information, in conformance with § 512.8; and

(d) Any request for an extension of time, made in accordance with § 512.11.