Experience: A minimum of two to four years of work-related skill, knowledge, or experience is needed for these occupations. For example, an accountant must complete four years of college and work for several years in accounting to be considered qualified. Education: Most of these occupations require a four - year bachelor's degree, but some do not. Training: Employees in these occupations usually need several years of work-related experience, on-the-job training, and/or vocational training.