This ANSI-approved standard establishes minimum criteria for the design, installation and testing of solar thermal collectors. The requirements in ICC 901/SRCC 100 update the previous edition by enhancing electrical and fire safety, expanding coverage of PV-thermal hybrid and concentrating collectors, and further correlating design requirements with the latest model building codes. Like the previous edition, it is a successor document to the long-established SRCC 100, 150 and 600 standards for solar thermal collectors.