§ 3961. General rule
(a)
The retired grade of a regular commissioned officer of the Army who retires other than for physical disability, and the retired grade of a reserve commissioned officer of the Army who retires other than for physical disability, is determined under section
1370 of this title.
(b)
Unless entitled to a higher retired grade under some other provision of law, a Regular or Reserve of the Army not covered by subsection (a) who retires other than for physical disability retires in the regular or reserve grade that he holds on the date of his retirement.