33 U.S. Code § 3061 - Cooperation with and transfer to military departments
The President may, whenever in the judgment of the President a sufficient national emergency exists, transfer to the service and jurisdiction of a military department such vessels, equipment, stations, and officers of the Administration as the President considers to be in the best interest of the country.
After any such transfer all expenses connected therewith shall be defrayed out of the appropriations for the department to which the transfer is made.
Such transferred vessels, equipment, stations, and officers shall be returned to the Administration when the national emergency ceases, in the opinion of the President.
This section does not authorize the transfer of an officer of the Administration to a military department if the accession or retention of that officer in that military department is otherwise not authorized by law.
An officer of the Administration transferred under this section, shall, while under the jurisdiction of a military department, have proper military status and shall be subject to the laws, regulations, and orders for the government of the Army, Navy, or Air Force, as the case may be, insofar as the same may be applicable to persons whose retention permanently in the military service of the United States is not contemplated by law.