PT PLN (Persero) Jasa Sertifikasi is one of supporting unit of the holding company PT PLN (Persero) which have core bussiness and assigned for in certifying in electricity sector and has been accredited by KAN, includes certifying safety and compliance of electricity network installation, certifying of electrical installation product (SPM), certifying of quality management system, certifying of environmental management system, as well as commissioning power plant and electricity network.