Code of Federal Regulations Title 29. Labor § 29.779.507 Fourteen-year minimum

(a) Prohibited occupations. With respect to employment in occupations other than manufacturing and mining, the Secretary is authorized to issue regulations or orders lowering the age minimum to 14 years where he finds that such employment is confined to periods which will not interfere with the minors' schooling and to conditions which will not interfere with their health and well-being. Pursuant to this authority, the Secretary permits the employment of 14– and 15–year–old children in a limited number of occupations where the work is performed outside school hours and is confined to other specified limits. Under the provisions of Child Labor Regulations, subpart C (§§ 570.31 through 570.38 of this chapter), employment of minors in this age group is not permitted in the following occupations:

(b) Permissible occupations;  conditions. Employment of 14– and 15–year–olds in all occupations other than those in paragraph (a) of this section is permitted by the regulation under certain conditions specified in the regulation. The permissible occupations for minors between 14 and 16 years of age in retail, food service, and gasoline service establishments are listed in § 570.34. The periods and conditions of employment for such minors are set out in § 570.35.