The NEC is the go-to guide for legal requirements for installing PV systems. NEC regulations are updated every three years. This chapter describes safety practices and procedures that must be used to install PV . Safety protocols in photovoltaic system installation demand rigorous attention to protect both installers and end-users. Electric shock hazards from high DC voltages require comprehensive arc-flash protection, properly rated personal protective equipment (PPE), and strict lockout-tagout procedures. The installation and operation of solar panels, though environmentally beneficial, involve intricate safety considerations that demand attention. Safety prac-tices are critical to reducing or eliminating installation errors, electrical haz-ards, or worse—injury or death on the job. But before you start, it's important to keep safety front and center. Solar panel installation involves working with electricity and heights, so taking the right precautions can save you from accidents and. ry stakeholders involved in installation of PV panels carry it out safely.