; and (B) collect the repayment amounts within a period of time as determined by the Secretary, or the repayment amounts shall be treated as a loan in accordance with subsection (h). (2) Returned to Treasury Except as provided in paragraph (3), any repayment under this subsection shall be returned to the Treasury of the United States. (3) Retained percentage An institution described in subsection (b)(1) may retain a percentage of any repayment such institution collects under this subsection to defray administrative costs associated with such collection. The Secretary shall establish a single, fixed percentage that will apply to all such institutions. (j) Exceptions The Secretary may provide for the partial or total waiver or suspension of any service or repayment obligation by an individual under this section whenever compliance by such individual with such obligation is impossible or would involve extreme hardship to such individual, or if enforcement of such obligation with respect to such individual would be unconscionable. . (b) Clerical amendment The table of contents in section 1(b) of the Homeland Security Act of 2002 is amended by inserting after the item relating to section 2218, as added by this title, the following new item: Sec. 2219. Scholarship for service. . 315. Cybersecurity and Infrastructure Security Agency review (a) In general The Director of the Cybersecurity and Infrastructure Security Agency of the Department of Homeland Security shall conduct a review of the ability of the Cybersecurity and Infrastructure Security Agency to carry out its mission requirements, as well as the recommendations detailed in the U.S. Cyberspace Solarium Commission’s Report regarding the Agency. (b) Elements of review The review conducted in accordance with subsection (a) shall include the following elements: (1) An assessment of how additional budget resources could be used by the Cybersecurity and Infrastructure Security Agency for projects and programs that— (A) support the national risk management mission