Workplace training classes can be completed within six months and online training can take a year or longer. The length of a course will be based on the type of material covered, the amount of training time and how long the student takes each day. If the student is able to follow the curriculum fully, a good course will not take more than one year. If a student is able to finish the course in less than one year, the course ought to be re-taken within a year. If the student continues to have a course at a reduced pace, more time might be required.