It is difficult to specify how long a course should last as there are many issues which affect the rate of learning. Courses should be long enough to meet the requirements of the accrediting bodies guidelines and  ‘Basic training: Tests of operator skills’ (typically 3-5 days). 

Operators with some experience of lift trucks or relevant experience of similar vehicles may need less extensive training than those with no experience, however, do not overestimate the value of such experience. An operator with basic training on one type of lift truck or handling attachment cannot safely operate others, on which they have not been trained, without additional conversion training. 

 The ability to drive private cars or other conventional road vehicles, for example, does not remove the need for proper training on lift trucks, which have very different controls and stability and handling characteristics.