; (2) the Secretary of Defense should rapidly develop and deploy a persistent, space-based sensor architecture to ensure missile defenses of the United States are more effective against ballistic missile threats and more responsive to emergent threats from hypersonic and cruise missiles; (3) the responsibility for developing and deploying a hypersonic and ballistic tracking space sensor should remain within the Director of the Missile Defense Agency; and (4) the Director of the Missile Defense Agency should deploy a hy­per­son­ic and ballistic tracking space sensor constellation as soon as technically feasible. (c) Assignment of primary responsibility for development and deployment of the hypersonic and ballistic tracking space sensor Not later than 30 days after the date of the enactment of this Act, the Secretary shall— (1) assign the Director of the Missile Defense Agency with the principal responsibility for the development and deployment of a hypersonic and ballistic tracking space sensor; and (2) submit to the congressional defense committees certification of such assignment. (d) Certification regarding funding of hypersonic and ballistic tracking space sensor program At the same time that the President submits to Congress pursuant to section 1105 of title 31, United States Code, the annual budget request of the President for fiscal year 2021, the Under Secretary of Defense Comptroller and the Director for Cost Assessment and Program Evaluation shall jointly certify to the congressional defense committees whether the hypersonic and ballistic tracking space sensor program is sufficiently funded in the Future-Years Defense Program for the Missile Defense Agency. (e) Deployment deadline Section 1683(a) of the National Defense Authorization Act for Fiscal Year 2018 ( Public Law 115–91 ; 10 U.S.C. 2431 note) is amended— (1) by striking (a) In general .— and inserting the following: (a) Development, testing, and deployment (1) Development