; (E) the worker is qualified to undertake and complete such training; and (F) such training is suitable for the worker and available at a reasonable cost, the Commission shall approve such training for the worker. Upon such approval, the worker shall be entitled to have payment of the costs of such training (subject to the limitations imposed by this section) paid on the worker's behalf by the Commission directly or through a voucher system. Insofar as possible, the Secretary shall provide or assure the provision of such training on the job, which shall include related education necessary for the acquisition of skills needed for a position within a particular occupation. (2) Funding and limitation on total distribution of funds (A) The total amount of payments that may be made under paragraph (1) for any fiscal year shall not exceed $250,000,000. (B) If, during any fiscal year, the Secretary estimates that the amount of funds necessary to pay the costs of training approved under this section will exceed the amount of the limitation imposed under subparagraph (A), the Secretary shall decide how the portion of such limitation that has not been expended at the time of such estimate is to be apportioned among the States for the remainder of such fiscal year. (3) Reasonable expectation of employment For purposes of applying paragraph (1)(C), a reasonable expectation of employment does not require that employment opportunities for a worker be available, or offered, immediately upon the completion of training approved under paragraph (1). (4) No double-dipping If the costs of training an adversely affected worker or an adversely affected incumbent worker are paid by the Commission under paragraph (1), no other payment for such costs may be made under any other provision of Federal law. No payment may be made under paragraph (1) of the costs of training an adversely affected worker or an adversely affected incumbent worker if such costs— (A) have already been paid under any other provision of Federal law