Maryland Code, BUSINESS OCCUPATIONS AND PROFESSIONS 4-301.2
(b) A student may practice barbering or provide barber-stylist services under this section only if the student:
(1) is enrolled in an approved barbering program and has a record of satisfactory school performance and school attendance, as determined by the local education agency;
(2) has a letter of authorization signed by the student’s teacher or work-study coordinator, to practice barbering or to provide barber-stylist services in a specific licensed barbershop;
(3) practices barbering or provides barber-stylist services only in that specific licensed barbershop; and
(4) while practicing barbering or providing barber-stylist services, works under the direct supervision of an individual who is a licensed master barber who agrees to periodically report on the progress of the student to the barbering teacher or the work-study coordinator.
(c) Under this section, there may not be more than three students working under the supervision of a licensed master barber.
(d) A barbershop may pay a student for work authorized under this section.
(e) A student authorized under this section to practice barbering or to provide barber-stylist services without a license shall conspicuously display a letter of authorization, as required by this section, at the student’s work station in the specified licensed barbershop.