Section 4-507 - Operation of barbershops(a) A barbershop may not employ at the same time more than three apprentice barbers for each master barber employed.(b) A barbershop may have a separate shampoo area.(c) The Board may not require a barbershop to have a minimum number of sinks.(d)(1) An apprentice barber under complete and constant supervision of a master barber may assist the master barber in starting or completing an operation. The master barber or barbershop may charge the usual fees for the operation.(2) A fee may not be charged for an operation performed completely by an apprentice barber.Amended by 2021 Md. Laws, Ch. 194,Sec. 1, eff. 10/1/2021.