The purpose of this code is to provide minimum requirements, with due regard to function, for the design, operation, and maintenance of buildings and structures for safety to life from fire. Its provisions will also aid life safety in similar emergencies. Part one of this handbook includes the complete text of the 2012 Life Safety Code. The commentary follows the Code it discusses and is easily identified by green shading. Designed to help users understand and apply Code provisions, the commentary gives detailed explanations of the reasoning behind code requirements, examples of calculations, applications of requirements, and tables of useful information. More than 550 drawings and photographs show practical applications of specific provisions.