What must an instructor have before teaching the use of an electric nail file?

An instructor must possess a board-approved certification of proficiency before teaching the use of an electric nail file. This requirement ensures that the instructor has received the necessary training and has demonstrated competence in using the electric nail file safely and effectively. Certification from the appropriate board indicates that the instructor understands the proper techniques, safety protocols, and best practices associated with the use of this equipment.

Achieving this certification helps to maintain high standards of education in the field, ensuring that students receive training from qualified professionals who adhere to the regulations set forth by the board. This not only protects the students but also ensures that they acquire the proper knowledge and skills to use the electric nail file confidently and safely in their future practices.