Final answer:
Nail technicians are required to complete training and obtain certification in order to perform professional nail services.
Step-by-step explanation:
Nail technicians are required to complete training and obtain certification in order to perform professional nail services. The specific training and certification requirements vary by state, but generally, nail technicians must complete a state-approved nail technology program and pass a licensing exam to become certified. The training covers topics such as nail anatomy, sanitation and disinfection, nail diseases and disorders, and proper application of nail products.