; and (D) a statement that if the policyholder has any questions regarding information in the acknowledgment sheet or policy he or she should contact their insurance agent, together with the address and phone number at which to contact such agent. (3) Required signatures A policy for flood insurance coverage under the National Flood Insurance Program may not take effect unless the disclosure sheet required under paragraph (1) and the acknowledgment sheet required under paragraph (2), with respect to the policy, are signed and dated by the policyholder, the insurance agent who sold the policy, and a representative of the Administrator. (d) Availability in other languages (1) Availability The Administrator shall make policies under the National Flood Insurance Program, and the disclosure and acknowledgment sheets required by subsection (c), available in Spanish language versions and in such other languages as the Administrator considers appropriate and shall provide such a version at the request of the insured or prospective insured. (2) Publicizing availability The Administrator shall take such actions as may be necessary to inform insureds and prospective insures of the availability of policies in such languages other than English. (3) Conflicting information In the case of any difference between the information that is provided pursuant to this subsection to a policyholder in the English language and in the Spanish or other language, the information provided in the English language shall be determinative. . 4. Properties with preexisting conditions Section 1311 of the National Flood Insurance Act of 1968 ( 42 U.S.C. 4018 ) is amended by adding at the end the following new subsection: (c) Program for investigation of preexisting structural conditions (1) Voluntary program The Administrator shall carry out a program to provide for companies participating in the Write Your Own program (as such term is defined in section 100202 of the Biggert-Waters Flood Insurance Reform Act of 2012 ( 42 U.S.C. 4004 )) to