; and (ii) the impact of those changes on the ability of that agency to perform its other responsibilities, including any impact on specific missions or programs of the agency. (C) Congressional notification The head of a National Drug Control Program Agency shall submit a copy of any impact statement under subparagraph (B) to the Senate, the House of Representatives, and the appropriate congressional committees, at the time the budget for that agency is submitted to Congress under section 1105(a). (5) Certification of budget submissions (A) In general At the time a National Drug Control Program Agency submits its budget request to the Office of Management and Budget, the head of the National Drug Control Program Agency shall submit a copy of the budget request to the Director. (B) Review and certification of submissions The Director shall review each budget submission submitted under subparagraph (A) and submit to the appropriate congressional committees one of the following: (i) A written certification of the budget request for the agency indicating such request fully funds the National Drug Control Programs as necessary to achieve the goals of the National Drug Control Strategy, including a written statement explaining the basis for the determination that the budget provides sufficient resources for the agency to achieve the goals of the Strategy. (ii) A written certification of the budget request for the agency indicating such request partially funds the National Drug Control Programs as necessary to achieve the goals of the Strategy, including a written statement explaining the basis for the determination and identifying the level of funding sufficient to achieve the goals of the Strategy. (iii) A written decertification of the budget request for the agency indicating the Director is unable to determine whether such budget request for the agency fully funds or partially funds the National Drug Control Programs as necessary to achieve the goals of the National Drug Control Strategy, including a written