All school bus drivers shall attend classes or schools of instruction as approved by the department of education and provided for in Iowa Code section 321.376(2). All new drivers will, within the first six months of employment, successfully complete the "new driver STOP class" approved by the department. All current school bus drivers are to attend the annual course of instruction. Upon missing a year of instruction, a current driver must successfully complete the course of instruction for new drivers prior to receiving an authorization. The employer of a school bus driver may impose additional training for any new or current driver.
Iowa Admin. Code r. 281-43.19