Pub. L. 103-239, tit. III, sec. 307
HIGH POVERTY AREA DEFINED.
SEC. 307. HIGH POVERTY AREA DEFINED. For purposes of this title, the term “high poverty area” means an urban census tract, a contiguous group of urban census tracts, a block number area in a nonmetropolitan county, a contiguous group of block number areas in a nonmetropolitan county, or an Indian reservation (as defined in section 403(9) of the Indian Child Protection and Family Violence Prevention Act (25 U.S.C. 3202(9))), with a poverty rate of 20 percent or more among individuals who have not attained the age of 22, as determined by the Bureau of the Census.