EAO 31.903.7 is the US Department of Housing and Urban Development (HUD) Office of Fair Housing and Equal Opportunity regulation that prohibits any provider from discriminating against any person on the basis of race, color, sex, national origin, disability, or familial status. This regulation applies to any person who owns, rents, leases, or manages a dwelling, or helps to determine eligibility for or benefits of housing. It also applies to any person who is providing housing-related services.