29 CFR § 570.119 - Fourteen-year minimum.
With respect to employment in occupations other than manufacturing and mining and in accordance with the provisions of FLSA section 13(c)(7), the Secretary is authorized to issue regulations or orders lowering the age minimum to 14 years where he or she finds that such employment is confined to periods that will not interfere with the minors' schooling and to conditions that will not interfere with their health and well-being. Pursuant to this authority, the Secretary has detailed in § 570.34 all those occupations in which 14- and 15-year-olds may be employed when the work is performed outside school hours and is confined to other specified limits. The Secretary, in order to provide clarity and assist employers in attaining compliance, has listed in § 570.33 certain prohibited occupations that, over the years, have been the frequent subject of questions or violations. The list of occupations in § 570.33 is not exhaustive. The Secretary has also set forth, in § 570.35, additional conditions that limit the periods during which 14- and 15-year-olds may be employed. The employment of minors under 14 years of age is not permissible under any circumstances if the employment is covered by the child labor provisions and not specifically exempt.