active duty
(18) The term “active duty” means full-time duty in the active service of a uniformed service, and includes full-time training duty, annual training duty, full-time National Guard duty, and attendance, while in the active service, at a school designated as a service school by law or by the Secretary concerned.
Source
37 USC § 101(18)
Scoping language
None identified, default scope is assumed to be the parent (chapter 1) of this section.