1. Short title This Act may be cited as the School Security is Homeland Security Grant Act of 2018 . 2. School security grant activities The Homeland Security Act of 2002 is amended— (1) in section 2001 ( 6 U.S.C. 601 )— (A) by redesignating paragraphs (5) through (14) as paragraphs (7) through (16), respectively; and (B) by inserting after paragraph (4) the following new paragraphs: (5) Early childhood education program The term early childhood education program means— (A) a Head Start program or an Early Head Start program carried out under the Head Start Act ( 42 U.S.C. 9831 et seq.), including a migrant or seasonal Head Start program or an Indian Head Start program; or (B) a State prekindergarten program or a program authorized under section 619 or part C of the Individuals with Disabilities Education Act ( 20 U.S.C. 1419 and 20 U.S.C. 1431 et seq.), that serves children from birth through age six and that addresses the children’s cognitive (including language, early literacy, and pre-numeracy), social, emotional, and physical development. (6) Elementary school, high school, secondary school The terms elementary school , high school , and secondary school have the meanings given such terms in section 8101 of the Elementary and Secondary Education Act of 1965 ( 20 U.S.C. 7801 ). ; (2) in section 2003(e) ( 6 U.S.C. 604(e) )— (A) by striking paragraphs (1) through (6); and (B) by striking — and inserting $900,000,000 for each of fiscal years 2019 through 2023, of which not less than five percent for each of such fiscal years shall only be for grants relating to securing early childhood education programs, elementary schools, high schools, and secondary schools. ; (3) in section 2004(f) ( 6 U.S.C. 605(f) )— (A) by striking paragraphs (1) and (2)