The Secretary of Health and Human Services shall enter into cooperative agreements with the governments of the countries which are the major sources of food imports into the United States subject to pesticide residue monitoring by the Food and Drug Administration for the purpose of improving the ability of the Food and Drug Administration to assure compliance with the pesticide tolerance requirements of the Federal Food, Drug, and Cosmetic Act [21 U.S.C. 301 et seq.] with regard to imported food.