29 CFR § 570.1 - Definitions.
As used in this part:
(c) Oppressive child labor age means an age below the minimum age established under the Act for the occupation in which a minor is employed or in which his employment is contemplated.
(d) A certificate of age means a certificate as provided in § 570.5(b) (1) or (2) of this part.
(f) Secretary” or Secretary of Labor means the Secretary of Labor, United States Department of Labor, or his authorized representative.
(g) Wage and Hour Division means the Wage and Hour Division, United States Department of Labor.
(i) State agency means any officer, executive department, board, bureau or commission of a State or any division or unit thereof authorized to take action with respect to the application of laws relating to minors.