24 CFR § 103.204 - HUD complaints and compliance reviews.
(a) The Assistant Secretary may conduct an investigation and file a complaint under this subpart based on information that one or more discriminatory housing practices has occurred, or is about to occur.
(b) HUD may also initiate compliance reviews under other appropriate civil rights authorities, such as E.O. 11063 on Equal Opportunity in Housing, title VI of the Civil Rights Act of 1964, section 109 of the Housing and Community Development Act of 1974, section 504 of the Rehabilitation Act of 1973 or the Age Discrimination Act of 1975.
(c) HUD may also make the information you provide available to other Federal, State, or local agencies having an interest in the matter. In making such information available, HUD will take steps to protect the confidentiality of any informant or complainant when desired by the informant or complainant.