; and (ii) if such investigation is not determinative, an on-site inspection of the property to determine whether such preexisting structural conditions are present; (B) upon completion of an investigation or inspection pursuant to subparagraph (A) that determines that such a preexisting structural condition is present or absent, submit a report to the policyholder and Administrator describing the condition; and (C) impose a surcharge on each policy described in subparagraph (A) in such amount that the Administrator determines is appropriate to cover the costs of investigations and inspections performed pursuant to such policies and reimburse Write Your Own companies participating in the program under this subsection for such costs. . 5. Improvement of administrative and litigation process for claims adjudication (a) Industry program with Federal financial assistance Section 1333 of the National Flood Insurance Act of 1968 ( 42 U.S.C. 4053 ) is amended— (1) by striking mailing of notice of disallowance or partial disallowance by the Administrator and inserting the final determination by the Administrator disallowing or partially disallowing the claim ; and (2) by adding after the period at the end the following: If the claimant prevails in an action under this section, the court may award costs of litigation, including attorneys fee, litigation expenses, and engineering and other expert expenses, to the claimant. Any such award shall be paid by the Administrator and, upon such payment, the Administrator shall be subrogated to the rights of the claimant to recover such costs for which the Administrator has compensated the claimant from any company or other insurer responsible for the disallowance of the claim. . (b) Government program with industry assistance Section 1341 of the National Flood Insurance Act of 1968 ( 42 U.S.C. 4072 ) is amended— (1) by striking mailing of notice of disallowance or partial disallowance of and inserting the final determination disallowing or partially disallowing