(a) On Request of Secretary of Defense.— 
On request of the Secretary of Defense, the head of an agency responsible for the administration of the navigation or vessel-inspection laws shall waive compliance with those laws to the extent the Secretary considers necessary in the interest of national defense.

(b) By Head of Agency.— 
When the head of an agency responsible for the administration of the navigation or vessel-inspection laws considers it necessary in the interest of national defense, the individual may waive compliance with those laws to the extent, in the manner, and on the terms the individual prescribes.

(c) Termination of Authority.— 
The authority granted by this section shall terminate at such time as the Congress by concurrent resolution or the President may designate.