to follow adequate safeguards to assure safe use of the covered product during development or testing activities conducted under this section. . (b) Waiver of single, shared system requirement Section 505–1(i)(1)(B) of the Federal Food, Drug, and Cosmetic Act ( 21 U.S.C. 355–1(i)(1)(B) ) is amended— (1) in clause (i), by striking or at the end