; and (B) is among the local educational agencies in a State with the highest number or proportion of children who are counted under section 1124(c) of the Elementary and Secondary Education Act of 1965, in comparison to other local educational agencies in the State. (10) High-need school The term high-need school means— (A) an elementary school or middle school in which not less than 50 percent of the enrolled students are children from low-income families; or (B) a high school in which not less than 40 percent of the enrolled students are children from low-income families, which may be calculated using comparable data from the schools that feed into the high school. (11) LEED Green building rating system The term LEED Green Building Rating System means the United States Green Building Council Leadership in Energy and Environmental Design green building rating system. (12) Low-income family The term low-income family means a family— (A) in which the children are eligible for a free or reduced-price lunch under the Richard B. Russell National School Lunch Act ( 42 U.S.C. 1751 et seq.); (B) receiving assistance under the program of block grants to States for temporary assistance for needy families established under part A of title IV of the Social Security Act ( 42 U.S.C. 601 et seq.)