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The ISEP meets the industry’s need for a resource that contains the complete solar energy-related provisions from the 2018 International Codes and NFPA 70: 2017 NEC® National Electrical Code, and selected standards in one document. The ISEP is organized such that it provides the best and most comprehensive tool for the design, installation and administration of both solar thermal (or solar heating and cooling) and photovoltaic systems. Similar to the organization of the International Energy Conservation Code® (IECC®), the Solar Commercial and Residential provisions have been presented in separate parts, to make it user friendly and easy to apply. Three important solar referenced standards have been included in their entirety: Solar Rating & Certification Corporation (SRCC) Standard 100 (Minimum Standards for Solar Thermal Collectors); SRCC Standard 300 (Minimum Standards for Solar Water Heating Systems); and SRCC Standard 600 (Minimum Standards for Solar Thermal Concentrating Collectors). Additional resources, such as sample solar permitting forms and links to the U.S. Department of Energy solar site access, have also been included, making this 2018 ISEP the single, most comprehensive document for solar energy code provisions and standards in the nation.