; (iii) provide the borrower with an opportunity to update the information obtained under clause (i) before the determination of the annual repayment obligation of the borrower; and (iv) in the case of a borrower for whom adjusted gross income is unavailable— (I) if the borrower has selected to repay the covered loans of such borrower pursuant to an income contingent repayment plan that defines discretionary income in such a manner that an individual not required under section 6012(a)(1) of the Internal Revenue Code of 1986 to file a return with respect to income taxes imposed by subtitle A of such Code may have a calculated monthly payment greater than $0, the borrower will be required to provide the Secretary with other documentation of income satisfactory to the Secretary, which documentation the Secretary may use to determine an appropriate repayment schedule