49 CFR § 512.7
Where should I send the information for which I am requesting confidentiality?
November 18, 2020
A claim for confidential treatment must be submitted in accordance with the provisions of this regulation to the Chief Counsel of the National Highway Traffic Safety Administration, 1200 New Jersey Avenue, SE., West Building W41-227, Washington, DC 20590.
[72 FR 59470, Oct. 19, 2007]