; and (B) in subparagraph (D), by substituting 12-month period for 6-month period . (2) No accrual of interest Notwithstanding any other provision of this part, interest shall not accrue on a Federal Direct Unsubsidized Stafford Loan during the 12-month period described in paragraph (1). (s) Extension of certain deferment period for Federal Direct PLUS Loans (1) In general With respect to Federal Direct PLUS Loans, section 428B(d)(1)(B) shall be applied— (A) in the case of a parent borrower, in clause (i), by substituting 12-month period for 6-month period ; and (B) in the case of a graduate or professional student borrower, in clause (ii), by substituting 12-month period for 6-month period . (2) No accrual of interest Notwithstanding any other provision of this part, interest shall not accrue on a Federal Direct PLUS Loan during the 12-month period described in paragraph (1). . (b) Effective date and application The amendments made by this section shall take effect on the date of enactment of this Act, and shall apply with respect to— (1) Federal Direct Stafford Loans, Federal Direct Unsubsidized Stafford Loans, and Federal Direct PLUS Loans made on or after the date of enactment of this Act; and (2) Federal Direct Stafford Loans, Federal Direct Unsubsidized Stafford Loans, and Federal Direct PLUS Loans made before such date of enactment to borrowers who have not yet entered repayment on such loans on such date of enactment.