; (B) a community housing development organization (as defined in section 104 of the Cranston-Gonzalez National Affordable Housing Act ( 42 U.S.C. 12704 )); (C) an Indian tribe or tribally designated housing entity (as such terms are defined in section 4 of the Native American Housing Assistance and Self-Determination Act of 1996 ( 25 U.S.C. 4103 )); or (D) a public housing agency, as such term is defined in section 3(b) of the United States Housing Act of 1937 ( 42 U.S.C. 1437(b) ). (3) Low-income community The term low-income community means a census tract in which 50 percent or more of the households have an income which is less than 80 percent of the greater of— (A) the median gross income for such year for the area in which such census tract is located