24 C.F.R. § 100.70

(a) It shall be unlawful, because of race, color, religion, sex, handicap, familial status, or national origin, to restrict or attempt to restrict the choices of a person by word or conduct in connection with seeking, negotiating for, buying or renting a dwelling so as to perpetuate, or tend to perpetuate, segregated housing patterns, or to discourage or obstruct choices in a community, neighborhood or development.

(b) It shall be unlawful, because of race, color, religion, sex, handicap, familial status, or national origin, to engage in any conduct relating to the provision of housing or of services and facilities in connection therewith that otherwise makes unavailable or denies dwellings to persons.

(c) Prohibited actions under paragraph (a) of this section, which are generally referred to as unlawful steering practices, include, but are not limited to:

(1) Discouraging any person from inspecting, purchasing or renting a dwelling because of race, color, religion, sex, handicap, familial status, or national origin, or because of the race, color, religion, sex, handicap, familial status, or national origin of persons in a community, neighborhood or development.

(2) Discouraging the purchase or rental of a dwelling because of race, color, religion, sex, handicap, familial status, or national origin, by exaggerating drawbacks or failing to inform any person of desirable features of a dwelling or of a community, neighborhood, or development.

(3) Communicating to any prospective purchaser that he or she would not be comfortable or compatible with existing residents of a community, neighborhood or development because of race, color, religion, sex, handicap, familial status, or national origin.

(4) Assigning any person to a particular section of a community, neighborhood or development, or to a particular floor of a building, because of race, color, religion, sex, handicap, familial status, or national origin.

(d) Prohibited activities relating to dwellings under paragraph (b) of this section include, but are not limited to:

(1) Discharging or taking other adverse action against an employee, broker or agent because he or she refused to participate in a discriminatory housing practice.

(2) Employing codes or other devices to segregate or reject applicants, purchasers or renters, refusing to take or to show listings of dwellings in certain areas because of race, color, religion, sex, handicap, familial status, or national origin, or refusing to deal with certain brokers or agents because they or one or more of their clients are of a particular race, color, religion, sex, handicap, familial status, or national origin.

(3) Denying or delaying the processing of an application made by a purchaser or renter or refusing to approve such a person for occupancy in a cooperative or condominium dwelling because of race, color, religion, sex, handicap, familial status, or national origin.

(4) Refusing to provide municipal services or property or hazard insurance for dwellings or providing such services or insurance differently because of race, color, religion, sex, handicap, familial status, or national origin.

(5) Enacting or implementing land-use rules, ordinances, procedures, building codes, permitting rules, policies, or requirements that restrict or deny housing opportunities or otherwise make unavailable or deny dwellings to persons because of race, color, religion, sex, handicap, familial status, or national origin.