Occupational licenses, which government agencies typically issue, show that a worker has completed a certain

type of education or passed a certain test. Some of the professionals who must hold a license are doctors,

teachers, nurses, engineers, accountants, and lawyers. In addition, most states require a license to work as a

barber, an embalmer, a dietitian, a massage therapist, a hearing aid dealer, a counselor, an insurance agent,

and a real estate broker. Some other jobs require a license in only one state. Minnesota requires a state license

to be a field archaeologist. North Dakota has a state license for bait retailers. In Louisiana, one needs a state

license to be a “stress analyst” and California requires a state license to be a furniture upholsterer. According

to a 2013 study from the University of Chicago, about 29% of U.S. workers have jobs that require occupational

licenses.
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