48 CFR 22.406-4: 22.406-4 Apprentices and trainees.

(a) The contracting officer shall review the contractor's employment and payment records of apprentices and trainees made available pursuant to the clause at 52.222-8, Payrolls and Basic Records, to ensure that the contractor has complied with the clause at 52.222-9, Apprentices and Trainees.

(b) If a contractor has classified employees as apprentices or trainees without complying with the requirements of the clause at 52.222-9, the contracting officer shall reject the classification and require the contractor to pay the affected employees at the rates applicable to the classification of the work actually performed.