; or and inserting or (II); ; (2) in clause (iv), by inserting or after the semicolon; and (3) by adding at the end the following: (v) during which the borrower is enrolled in a drug treatment program (as defined in section 455(f)(3)(C)), and the 30 days after such period; . (d) Federal Perkins loans Section 464(c)(2) of the Higher Education Act of 1965 ( 20 U.S.C. 1087dd(c)(2) ) is amended— (1) in subparagraph (A)— (A) in clause (iv), by striking ; or and inserting a semicolon; (B) in clause (v), by inserting or after the semicolon; and (C) by inserting after clause (v) the following: (vi) during which the borrower is enrolled in a drug treatment program (as defined in section 455(f)(3)(C)), and the 30 days after such period; . (e) Interest on unsubsubsidized Stafford Loans Section 428H(e)(2) of the Higher Education Act of 1965 ( 20 U.S.C. 1078–8(e)(2) ) is amended— (1) in subparagraph (A), by striking Interest and inserting, Except as provided in subparagraph (C), interest ; and (2) by adding at the end the following: (C) Interest shall not accrue on a loan deferred under section 428(b)(1)(M)(v) or 427(a)(2)(C)(iv). . (f) Applicability The amendments made by this Act shall apply with respect to loans— (1) made on or after the date of the enactment of this Act; or (2) in repayment on the date of the enactment of this Act.