ABSTRACT
How many years of on-the-job experience should a police officer have before being eligible for promotion to sergeant? How many years experience should a firefighter possess before becoming eligible for promotion to captain? What is the minimum number of years a person should be an apprentice in an industrial trade before becoming a licensed journey worker? How many years of flying experience should a pilot possess before being eligible to become a commercial airline pilot for a major airline? Should a person possess an undergraduate degree plus two years of experience before applying for a management position? A degree plus four years of experience? Five years?
