Hawaii Revised Statutes Division 2. Business § 439A-3

(a) No person shall for commercial purposes practice as a barber apprentice, beauty apprentice, barber, beauty operator, or beauty instructor; operate a barber shop, beauty shop, or beauty school; or announce or advertise as being prepared or qualified to practice or operate unless the person obtains a license or permit as required by this chapter.

(b) The practice of barbering and practice of cosmetology shall be carried on only by persons holding a license or permit to practice in the State and only in barber shops or beauty shops; provided that nothing in this chapter shall prevent or prohibit a barber to practice barbering or beauty operator to practice cosmetology:

(c) All licensees and permittees shall follow the sanitary practices as prescribed by rules of the board and any other sanitary practices or public health guidelines recommended by government agencies to protect the health and safety of the public.

(d) Nothing in this chapter shall be construed to prohibit or restrict the practice of a profession by individuals who are licensed, certified, or registered under the laws of the State who are performing services within their authorized scope of practice.