(a) 10 U.S.C. 2672 authorizes the Secretary of a military department to acquire land and interests in land, by gift, purchase, exchange of Government-owned land, or otherwise, that:
(1) The Secretary or his designee determines is needed in the interest of national defense, and
(2) Does not cost more than $50,000.
(b) 10 U.S.C. 2672a authorizes the Secretary of a military department to acquire any interest in land, including by exchange of Government-owned land, that:
(1) The Secretary or his designee determines is needed in the interest of national defense;
(2) Is required to maintain the operations integrity of a military installation; and
(3) Considerations of urgency do not permit the delay necessary to include the required acquisition in an annual Military Construction Authorization Act.