NETA Accredited Company (NAC) membership is tailored for third-party, independent firms involved in full-service testing, analysis, and maintenance of electrical power systems. This includes low-, medium-, and high-voltage distribution, substation, and generation equipment. NETA maintains a comprehensive accreditation process that certifies the company and its individual technicians to assure consumers of both the qualifications of the company as well as the credentials of the individual technician. Following accreditation, the qualifications of each NETA Accredited Company and its technicians are reviewed on a regular basis.