Pub. L. 115-232, div. A, tit. XVI, subtit. E, sec. 1682 (as amended)
LAYERED DEFENSE OF THE UNITED STATES HOMELAND.
SEC. 1682. LAYERED DEFENSE OF THE UNITED STATES HOMELAND.
(a) Sense of Congress.—It is the sense of Congress that the United States should—
(1) continue to explore and deploy capabilities that increase the layered defense of the United States homeland;
(2) support, if determined by the Secretary of Defense as necessary for the national security of the United States, the deployment of a ground-based interceptor site, or potential other ballistic missile defense systems pending successful testing, on the East Coast of the United States that—
(A) weighs cost effectiveness and prioritization of capability; and
(B) provides for increased protection of the continental United States from North Korean and Iranian threats;
(3) support the ability of the Army, the Navy, and the Missile Defense Agency to deploy fixed, semi-fixed, and mobile at-sea and ashore assets to locations to increase the layered defense of all of the United States homeland; and
(4) support, as appropriate, further analysis and testing for regional systems to be employed for the layered defense of the United States homeland.
(b) Certification.—Before the Secretary of Defense makes a potential determination to deploy regional assets to provide missile defense from longer range threats, the Secretary shall certify to the congressional defense committees that such deployment would not pose additional risk to strategic stability.