An employer shall not be deemed to have knowingly employed an
underage minor in the performance of contracts subject to the Act if,
during the period of the employment of such minor, the employer has on
file an unexpired certificate of age issued and held pursuant to
regulations issued by the Secretary of Labor under section 3(1) of the
Fair Labor Standards Act of 1938 (29 CFR 570.121), showing that such
minor is at least 16 years of age.
[52 FR 6147, Mar. 2, 1987. Redesignated at 61 FR 40716, Aug. 5, 1996]