In most states an electrical license requires prior completion of an apprenticeship or electrical training program, related work experience, and the successful completion of a licensing exam that tests an applicant's knowledge of electrical codes and procedures in both commercial and residential settings. Most states have various types of licenses, such as journeyman, master, maintenance or residential electrician, and require that applicants meet specific criteria to qualify for each licensing exam.
Wyoming's requirements for licensing as a journeyman electrician include evidence of four years or 8,000 hours of work experience in the electrical field and supervised by a qualified electrician and 144 hours per year of 476 hours over a four-year apprenticeship of related classroom training provided by an approved electrical apprenticeship program. Work experience must include electrical installation in residential, commercial and industrial settings. For licensing as a master electrician, Wyoming doubles the years and hours of work requirements and requires that four of the years of work experience be as a licensed journeyman. These and other requirements must be met and documentation verifying work experience and education submitted prior to the licensing examination.
Links to state licensing requirements are available at ExploreTheTrades.org. Those qualifying for a licensing exam can expect questions regarding electrical theory, the National Electrical Code, and pertinent laws and regulations of the licensing state. Some states provide licensing practice exams, and exam preparation and practice exams are also available for purchase online from private vendors.