(a) Under regulations prescribed by the President, each member of the National Guard called into Federal service under section 12301(a), 12302, or 12304 of this title shall be examined as to physical fitness, without further commission or enlistment.
(b) Immediately before such a member is mustered out of Federal service, he shall be examined as to physical fitness. The record of this examination shall be retained by the United States.
Structure US Code
Subtitle E— Reserve Components
CHAPTER 1211— NATIONAL GUARD MEMBERS IN FEDERAL SERVICE
§ 12401. Army and Air National Guard of the United States: status
§ 12404. Army and Air National Guard of the United States: mobilization; maintenance of organization
§ 12405. National Guard in Federal service: status
§ 12406. National Guard in Federal service: call
§ 12407. National Guard in Federal service: period of service; apportionment
§ 12408. National Guard in Federal service: physical examination