subclause (I), the term Indian area means any Indian area (as defined in section 4(11) of the Native American Housing Assistance and Self Determination Act of 1996 ( 25 U.S.C. 4103(11) )). (III) Special rule for buildings in Indian areas In the case of an area which is a difficult development area solely because it is an Indian area, a building shall not be treated as located in such area unless such building is assisted or financed under the Native American Housing Assistance and Self Determination Act of 1996 ( 25 U.S.C. 4101 et seq. ) or the project sponsor is an Indian tribe (as defined in section 45A(c)(6)), a tribally designated housing entity (as defined in section 4(22) of such Act ( 25 U.S.C. 4103(22) )), or wholly owned or controlled by such an Indian tribe or tribally designated housing entity. . (c) Effective date The amendments made by this section shall apply to buildings placed in service after December 31, 2023. 205. Inclusion of rural areas as difficult development areas (a) In general Subclause (I) of section 42(d)(5)(B)(iii) of the Internal Revenue Code of 1986, as amended by section 204, is further amended by inserting , any rural area after median gross income . (b) Rural area Clause (iii) of section 42(d)(5)(B) of the Internal Revenue Code of 1986, as amended by section 204, is further amended by redesignating subclause (IV) as subclause (V) and by inserting after subclause (III) the following new subclause: (IV) Rural area For purposes of subclause (I), the term rural area means any non-metropolitan area, or any rural area as defined by section 520 of the Housing Act of 1949, which is identified by the qualified allocation plan under subsection (m)(1)(B). . (c) Effective date The amendments made by this section shall apply to buildings placed in service after December 31, 2023. 206. Increase in credit for bond-financed projects designated by housing credit agency (a) In general Clause (v) of section 42(d)(5)(B) of the Internal Revenue Code of 1986 is amended by striking the second