24 CFR Part 100—Discriminatory Conduct Under the Fair Housing Act (with amendments issued through Sept. 2016)

(2) Before the date on which the discrimination is claimed to have occurred, a community or facility, through its authorized representatives, must certify, in writing and under oath or affirmation, to the person subsequently claiming the defense that it complies with the requirements for such an exemption as housing for persons 55 years of age or older in order for such person to claim the defense.