; (B) no population of color or community of color, indigenous community, or low-income community shall be exposed to a disproportionate burden of the negative human health and environmental impacts of pollution or other environmental hazards; and (C) the 17 Principles of Environmental Justice , written and adopted at the First National People of Color Environmental Leadership Summit held on October 24 through 27, 1991, in Washington, DC, are upheld. (5) Secretary The term Secretary means the Secretary of Education. 5. Demonstration program authorized (a) In General Not later than 6 months after the date of enactment of this Act, the Secretary and the Administrator shall enter into a memorandum of understanding to jointly administer the School Air Filters Demonstration Program described in this section for a 3-year period. (b) Selection of eligible schools (1) Selection of eligible schools Not later than 12 months after the date of enactment of this Act, the Secretary and the Administrator shall select a minimum of 175 eligible schools to participate in the School Air Filters Demonstration Program. (2) Priority In selecting eligible schools under this subsection, the Secretary and the Administrator shall do so with the purpose of advancing environmental justice, giving priority— (A) first, to eligible schools that are located in a nonattainment area for PM2.5, PM10, or ozone; (B) second, to eligible schools that have school facilities that pose a severe health and safety threat to students and staff; and (C) third, to eligible schools that have a high concentration of students from a low-income family. (3) Considerations in selection In selecting eligible schools under this subsection, the Secretary and the Administrator— (A) shall seek to select eligible schools that represent— (i) a mix of elementary schools, middle schools, and high schools; and (ii) a mix of urban, suburban, and rural schools