An official website of the United States government
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Notice of proposed rulemaking (NPRM).
This action proposes to address the traveling needs of persons on oxygen therapy by permitting the use of certain portable oxygen concentrator devices on aircraft, providing certain conditions are satisfied.