1. Short title This Act may be cited as the Defending Special Education Students and Families Act of 2017 . 2. Authorization of appropriations for part B of the Individuals with Disabilities Education Act Section 611(i) of the Individuals with Disabilities Education Act ( 20 U.S.C. 1411(i) ) is amended to read as follows: (i) Authorization of Appropriations For the purpose of carrying out this part, other than section 619, there are authorized to be appropriated— (1) $14,820,549,000 for fiscal year 2018; (2) $18,299,715,000 for fiscal year 2019; (3) $22,595,623,000 for fiscal year 2020; (4) $27,900,008,000 for fiscal year 2021; (5) $34,499,611,000 for fiscal year 2022; and (6) for fiscal year 2023 and each subsequent fiscal year— (A) the number of children with disabilities in the prior school year in the States, outlying areas, and freely associated States who received special education and related services— (i) aged 3 through 5 if the States, outlying areas, and freely associated States are eligible for a grant under section 619; and (ii) aged 6 through 21; multiplied by (B) 40 percent of the average per-pupil expenditure in public elementary schools and secondary schools in the United States; adjusted by (C) the rate of annual change in the sum of 85 percent of such State's, outlying areas, and freely associated State's population described in subsection (d)(3)(A)(i)(II). . 3. Redirection of defense spending for domestic programs (a) Changes to discretionary spending limits Section 251(c) of the Balanced Budget and Emergency Deficit Control Act of 1985 ( 2 U.S.C. 901(c) ) is amended as follows: (1) Fiscal year 2018 In paragraph (5)— (A) in subparagraph (A), relating to spending in the revised security category, by inserting (decreased by $14,820,549,000) after the dollar amount