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

(c) The procedures described in paragraph (b) of this section must provide for regular updates, through surveys or other means, of the initial information supplied by the occupants of the housing facility or community. Such updates must take place at least once every two years. A survey may include information regarding whether any units are occupied by persons described in paragraphs (e)(1), (e)(3), and (e)(4) of §100.305.