This chapter does not apply to:
1. A person licensed pursuant to chapter 644A of NRS, unless the person has engaged in any act or practice which constitutes a violation of subsection 6 or 7 of NRS 643.190.
2. Embalmers or undertakers in cutting the hair or trimming the beard of any deceased person in preparation for burial or cremation.
3. A prisoner who cuts hair in the city or county jail, state prison, or other detention or correctional facility in which he or she is incarcerated.