Maryland Code, Business Occupations and Professions § 4-404

(1) in a:

(2) under the supervision of a master barber.

(b)(1) An apprentice barber shall practice barbering or provide barber-stylist services only at the barbershop or beauty salon with a barbershop permit issued under § 5-504 of this article.

(2) An apprentice barber may only be paid for work authorized under this section performed while assisting a master barber in starting or completing an operation.