14 U.S.C. § 2132
(a) Secretary Designation.— The Secretary may designate a limited number of officers of the Coast Guard as having particular expertise in—
(b) Promotion and Grade.— An individual designated under this section—
(Added Pub. L. 119–60, div. G, title LXXII, § 7221(a), , 139 Stat. 1699.)