Out-of-service order
Out-of-service order means a written requirement issued by the Secretary, or a designee, that an aircraft, vessel, motor vehicle, train, railcar, locomotive, other vehicle, transport unit, transport vehicle, freight container, portable tank, or other package not be moved or cease operations until specified conditions have been met.
Source
49 CFR § 109.1
Scoping language
For purposes of this part, all terms defined in 49 U.S.C. 5102 are used in their statutory meaning. Other terms used in this part are defined as follows: