20 U.S. Code § 2353 - Special rules for career and technical education
For purposes of this section, the term “minimal amount” means not more than 15 percent of the total amount made available for distribution under section 2322(a)(1) of this title.
In any academic year that an eligible recipient does not expend all of the amounts the eligible recipient is allocated for such year under section 2351 or 2352 of this title, such eligible recipient shall return any unexpended amounts to the eligible agency to be reallocated under section 2351 or 2352 of this title, as appropriate.
In any academic year in which amounts are returned to the eligible agency under section 2351 or 2352 of this title and the eligible agency is unable to reallocate such amounts according to such sections in time for such amounts to be expended in such academic year, the eligible agency shall retain such amounts for distribution in combination with amounts provided under section 2322(a)(1) of this title for the following academic year.
For purposes of this section, the eligible agency shall provide funds to charter schools offering career and technical education programs in the same manner as the eligible agency provides those funds to other schools. Such career and technical education programs within a charter school shall be of sufficient size, scope, and quality to be effective.