The practice of barbering," is generally defined to mean shaving or trimming the beard or trimming the hair, when done upon the human male body above the seventh cervical vertebra for cosmetic purposes and not for the treatment of disease or physical or mental ailments, and when done for payment, directly or indirectly or without payment for the public generally.
The training and practice of barbers is regulated by state laws, which vary by state. State laws govern the certificates required, practice by students in certified barber colleges, and examinations for licenses. Most states delegate the enforcement of barber requirements to a Board of Barber Examiners; authorized to refuse to issue or renew license or certificate and hear appeals. The board has the power to refuse, revoke and suspend licenses and certificates of barbers, barber schools, and barber instructors..