For the purposes of this subchapter--
(a) The term "educational agency" means a local educational agency or a "State educational agency" as defined by section 3381(k) of this title.
(b) The term "local educational agency" means a local educational agency as defined by section 3381(f) of this title.
(c) The term "segregation" means the operation of a school system in which students are wholly or substantially separated among the schools of an educational agency on the basis of race, color, sex, or national origin or within a school on the basis of race, color, or national origin.
(d) The term "desegregation" means desegregation as defined by section 2000c(b) of title 42.
(e) An educational agency shall be deemed to transport a student if any part of the cost of such student's transportation is paid by such agency.
(Pub. L. 93-380, title II, Sec. 221, Aug. 21, 1974, 88 Stat. 518.)