24 C.F.R. § 100.120

(a) It shall be unlawful for any person or entity whose business includes engaging in residential real estate-related transactions to discriminate against any person in making available loans or other financial assistance for a dwelling, or which is or is to be secured by a dwelling, because of race, color, religion, sex, handicap, familial status, or national origin.

(b) Practices prohibited under this section in connection with a residential real estate-related transaction include, but are not limited to:

(1) Failing or refusing to provide to any person information regarding the availability of loans or other financial assistance, application requirements, procedures or standards for the review and approval of loans or financial assistance, or providing information which is inaccurate or different from that provided others, because of race, color, religion, sex, handicap, familial status, or national origin.

(2) Providing, failing to provide, or discouraging the receipt of loans or other financial assistance in a manner that discriminates in their denial rate or otherwise discriminates in their availability because of race, color, religion, sex, handicap, familial status, or national origin.

(3) Conditioning the availability of a loan or other financial assistance on a person's response to harassment because of race, color, religion, sex, handicap, familial status, or national origin.

(4) Subjecting a person to harassment because of race, color, religion, sex, handicap, familial status, or national origin that affects the availability of a loan or other financial assistance.