According to 49 CFR 105.5 [Title 49. Transportation Subtitle B Other Regulations Relating To Transportation Chapter I Pipeline And Hazardous Materials Safety Administration, Department Of Transportation Subchapter A Hazardous Materials And Oil Transportation Part 105 Hazardous Materials Program Definitions And General Procedures Subpart A Definitions] Competent Authority Approval means “an approval by the competent authority that is required under an international standard (for example, the ICAO Technical Instructions for the Safe Transport of Dangerous Goods by Air and the International Maritime Dangerous Goods Code). Any of the following may be considered a competent authority approval if it satisfies the requirement of an international standard:
(1) A specific regulation in subchapter A or C of this chapter.
(2) A special permit or approval issued under subchapter A or C of this chapter.
(3) A separate document issued to one or more persons by the Associate Administrator.