For safer and more effective design, installation, and maintenance, stay up to date on the newest carbon dioxide (CO2) fire extinguisher systems. Carbon dioxide total flooding systems, local application systems, hand hose line systems, standpipe systems, and mobile supply covering the entire range of systems used for industrial and marine fire protection are covered in NFPA 12, Standard on Carbon Dioxide Extinguishing Systems. The most recent consensus-based guidelines for the design, installation, and maintenance of high-pressure and low-pressure CO2 extinguishing systems are presented in this standard, which is up to date with code references in NFPA 4, Standard for Integrated Fire Protection and Life Safety System Testing. It is crucial for engineers, facility managers, inspectors, and fire protection designers and installers.