To limit the availability of certain funds for Mexico until the President makes a certification to Congress regarding cooperation by Mexico with respect to fentanyl, and for other purposes.

Limitation— No amounts made available under chapter 4 of part II of the Foreign Assistance Act of 1961 (22 U.S.C. 2346 et seq.) (relating to the economic support fund) for assistance for Mexico that are unobligated as of the date of the enactment of this Act may be obligated or expended until the President submits to Congress a written certification that Mexico is cooperating with the United States to reduce the flow of fentanyl across the southern border of the United States.

Rule of construction— Nothing in subsection (a) shall be construed as limiting the obligation or expenditure of funds made available for assistance to Mexico for international narcotics control under chapter 8 of part I of the Foreign Assistance Act of 1961 (22 U.S.C. 2291 et seq.) or for immigration enforcement purposes.