All states require CPA candidates to take and pass the Uniform CPA examination as a requirement for licensure in the U.S., regardless of an individual's educational qualifications. It is not necessary, however, to pass all subjects in one sitting.
Most states require candidates to pass an additional examination in professional ethics.
Experience requirements for the CPA Certificate range from no experience to four years or more. Unlike many other countries, the United States has no required internship program. One can sit for the CPA exam without being employed in public accounting. The prospective CPA has the sole responsibility for obtaining appropriate employment and experience as specified by a board of accountancy.