14 U.S.C. § 3756Section
§ 3756. Grade on entry upon active duty
A Reserve officer ordered to active duty or active duty for training shall be ordered in the grade held; except that the Secretary may authorize a higher grade.
(Added Pub. L. 96–322, §1, Aug. 4, 1980, 94 Stat. 1015, §745; renumbered §3756, Pub. L. 115–282, title I, §118(b), Dec. 4, 2018, 132 Stat. 4233.)