14 U.S.C. § 3 : US Code - Section 3: Relationship to Navy Department

Search 14 U.S.C. § 3 : US Code - Section 3: Relationship to Navy Department

Upon the declaration of war if Congress so directs in the
declaration or when the President directs, the Coast Guard shall
operate as a service in the Navy, and shall so continue until the
President, by Executive order, transfers the Coast Guard back to
the Department of Homeland Security. While operating as a service
in the Navy, the Coast Guard shall be subject to the orders of the
Secretary of the Navy who may order changes in Coast Guard
operations to render them uniform, to the extent he deems
advisable, with Navy operations.