No funds from any contract or grant pursuant to this subchapter shall be made available by any Federal agency directly to other than public agencies and Indian tribes , institutions, and organizations: Provided, That school districts, State education agencies, and Indian tribes , institutions, and organizations assisted by this subchapter may use funds provided herein to contract for necessary services with any appropriate individual, organization, or corporation. ( Pub. L. 93–638, title II, § 206 , Jan. 4, 1975 , 88 Stat. 2216 .) Editorial Notes Codification Section was formerly classified to section 458b of this title prior to editorial reclassification and renumbering as this section.