49 CFR § 512.21 - How is information submitted pursuant to this part treated once a confidentiality determination is made?
(a) Once the Chief Counsel makes a determination regarding the confidentiality of the submitted information, all materials determined not to be entitled to confidential protection will be disclosed to the public in accordance with the determination, unless a timely petition for reconsideration is received by the agency.
(b) Upon receipt of a timely petition for reconsideration under § 512.19 of this part, the submitted information will remain confidential, pending a determination regarding the petition.
(c) Should the Chief Counsel, after considering a petition for reconsideration, decide that information is not entitled to confidential treatment, the agency may make the information available after twenty (20) working days after the submitter has received notice of that decision from the Chief Counsel unless the agency receives direction from a court not to release the information.