; (C) to guarantee, or purchase insurance for, local obligations where such action would improve credit market access or reduce interest rates; (D) as a source of revenue or security for the payment of principal and interest on revenue or general obligation bonds issued by the coastal State if the proceeds of the sale of such bonds will be deposited in the community resilience revolving fund; (E) to provide loan guarantees for similar revolving funds established by municipalities or intermunicipal agencies; (F) to earn interest on community resilience revolving fund accounts; and (G) for the reasonable costs of administering the community resilience revolving fund and conducting activities under this section, except that such amounts shall not exceed 3 percent of all grant awards to such fund under this section, plus the amount of any fees collected by the coastal State for such purpose regardless of the source. (5) Subsidization (A) In general In any case in which a coastal State provides assistance to a municipality or intermunicipal, interstate, or State agency, the coastal State may provide additional subsidization, including forgiveness of principal and negative interest loans— (i) to benefit a municipality or intermunicipal agency that— (I) meets the affordability criteria of the coastal State established under subparagraph (B); or (II) does not meet the affordability criteria of the coastal State if the recipient— (aa) seeks additional subsidization to benefit individual ratepayers in the residential user rate class; (bb) demonstrates to the coastal State that such ratepayers will experience a significant hardship from the increase in rates necessary to finance the project or activity for which assistance is sought; and (cc) ensures, as part of an assistance agreement between the coastal State and the recipient, that the additional subsidization provided under this paragraph is directed through a user charge rate system (or other appropriate method) to such ratepayers