; and (B) in paragraph (3)— (i) in subparagraph (A), by striking the period at the end and inserting or a new animal drug that is an antibiotic drug; ; and (ii) in subparagraph (B), by striking ; or and inserting ; or ; and (3) in subsection (f)— (A) in paragraph (1), in the matter preceding subparagraph (A), by inserting for the conditionally approved use after shall ; and (B) in paragraph (2)— (i) by striking An intended use and inserting The Secretary shall, through regulation or guidance, determine under what conditions an intended use ; and (ii) by striking shall not and inserting may .