Reference the latest edition of NFPA 2001: Standard on Clean Agent Fire Extinguishing Systems to properly purchase, design, install, test, inspect, approve, operate, and maintain engineered or pre-engineered gaseous agent fire suppression systems so they will function as intended when needed. Requirements cover both halogenated agents and inert gases. Only the updated 2008 NFPA 2001 has the latest toxicity limitations plus complete facts on the different types of halogenated and inert gaseous extinguishing agents on the market today. Important changes to this edition include a new chapter for local application systems plus additional references to EPA SNAP approved agents.