; (2) loans purchased by the Secretary pursuant to section 459A; (3) loans made under part B that are held by an eligible lender, as such term is defined in section 435(d); and (4) loans made under part D. (c) Time period in which loans may be consolidated The Secretary may make a Federal ONE Consolidation Loan under this section to a borrower whose application for such Federal ONE Consolidation Loan is received on or after July 1, 2019, and before July 1, 2024. (d) Terms of Loans A Federal ONE Consolidation Loan made under this subsection shall have the same terms and conditions as a Federal ONE Consolidation Loan made under section 468, except that in determining the applicable rate of interest on the Federal ONE Consolidation Loan made under this section, section 465(c)(4) shall be applied without rounding the weighted average of the interest rate on the loans consolidated to the nearest higher one-eighth of one percent as in such section. 470. Deferment (a) Effect on principal and interest A borrower of a loan made under this part who meets the requirements described in subsection (b) shall be eligible for a deferment during which installments of principal need not be paid and, unless otherwise provided in this subsection, interest shall accrue and be capitalized or paid by the borrower. (b) Eligibility A borrower of a loan made under this part shall be eligible for a deferment— (1) during any period during which the borrower— (A) is carrying at least one-half the normal full-time work load for the course of study that the borrower is pursuing, as determined by the eligible institution the borrower is attending; (B) is pursuing a course of study pursuant to— (i) an eligible graduate fellowship program in accordance with subsection (g); or (ii) an eligible rehabilitation training program for individuals with disabilities in accordance with subsection (i)