; and (B) complies with the remaining proof of loss requirements under the standard flood insurance policy not later than— (i) 180 days after the date of the occurrence of the loss; or (ii) any later date specified by the Administrator. (2) Supplemental proof of loss A policyholder may amend or supplement a proof of loss not later than 180 days after the date on which the policyholder submits the initial proof of loss. . (b) Applicability The amendment made by subsection (a) shall apply to any claim for damage to or loss of property covered by flood insurance made available under the National Flood Insurance Act of 1968 ( 42 U.S.C. 4001 et seq.) that is pending on, or made after, the date of enactment of this Act. 602. Flood insurance transparency, accountability, and reform (a) Reports and other claim-Related documents Section 1312 of the National Flood Insurance Act of 1968 ( 42 U.S.C. 4019 ), as amended by section 601, is amended by adding at the end the following: (f) Final Engineering Reports The Administrator shall require that, in the case of any on-site inspection of a property by an engineer for the purpose of assessing any claim for losses covered by a policy for flood insurance coverage provided under this title (referred to in this subsection as a covered claim ), the final engineering report shall be provided to the insured under the policy, as follows: (1) Timing The final engineering report may not be transmitted to any other person, employer, agency, or entity, before it is transmitted to the insured. (2) Prohibition on alterations; certification The final engineering report— (A) shall be true, complete, and unredacted; (B) may not include alterations by, or at the request of, anyone other than the individual with responsible charge for the report