Which Class requires a Master Electrician license?

A Master Electrician license is typically required for Class A systems, which encompasses the broadest skill set in electrical work, as well as the responsibility for overseeing and managing complex electrical systems. Class A systems can include high-voltage distribution, extensive wiring, and significant installation tasks that require a deep understanding of electrical code, safety protocols, and the ability to manage a team of technicians.

In many jurisdictions, Class A allows for the supervision of various electrical projects, meaning a Master Electrician must have advanced knowledge of the principles of electricity, practical experience, and familiarity with electrical systems' regulations and safety. The need for a Master Electrician license for Class A reflects the technical expertise and accountability required in larger or more intricate electrical installations, setting it apart from Classes B, C, and D, which typically cover less complex systems requiring lesser qualifications.