(a) A school approved by the board is one which is licensed by the Bureau for Private Postsecondary and Vocational Education, or a public school in this state, and provides a course of instruction approved by the board.
(b) The board shall determine by regulation the required subjects of instruction to be completed in all approved courses, including the minimum hours of technical instruction and minimum number of practical operations for each subject, and shall determine how much training is required before a student may begin performing services on paying patrons.