§ 18239. Waiver of certain restrictions
(a)
The Secretary of Defense and the Secretary of each military department may make expenditures and contributions under section 
18233 of this title without regard to section 
3324
(a) and (b) of title 
31.
(b)
Authority provided by law to place permanent or temporary improvements on land under section 
18233 of this title may be exercised on land not owned by the United States—