20 C.F.R. § 618.635
(a) OJT—(1) Description. OJT is work-based training provided under contract with an employer in the public, nonprofit, or private sector to an AAW who is employed by the employer. OJT may be approved if the worker meets the requirements under §§ 618.610, 618.615, and 618.665. The State must determine that the OJT in question:
(3) Duration. The OJT contract with the employer must specify the duration of the OJT. The duration of the OJT must be appropriate to the occupational goal for which the AAW is being trained, taking into consideration the skills requirements of the job for which the AAW is being trained, the academic and occupational skill level of the AAW, and the work experience of the AAW, as documented in the worker's IEP, if available. The duration of the training must be long enough for the worker to become sufficiently proficient in the occupation for which the training is being provided to enable the worker to perform as well as workers in comparable positions within the firm. The OJT:
(4) Exclusion of certain employers. The State may not enter into a contract for OJT with an employer that exhibits a pattern of failing to provide workers receiving OJT from the employer with:
(5) Reimbursement.
(6) Approval of the costs of OJT. OJT costs for an AAW may be approved by a State only if a determination is made that:
(b) Customized training.
(c) Apprenticeship. Apprenticeship includes registered apprenticeships under the Act of August 16, 1937 (commonly known as the National Apprenticeship Act; 50 Stat. 664, chapter 663; 29 U.S.C. 50 et seq.), as well as other training programs that include a paid work-based learning component and required educational or instructional component that results in the issuance of a recognized postsecondary credential, which includes an industry-recognized credential.
(2) Eligible apprenticeship expenses. TAA Program funds can be used to pay for:
(ii) Other apprenticeships. Costs for an apprenticeship program may be approved by a State only if a determination is made that: