Book excerpt: Lees' is industry's first stop for process safety information. Lees' 4e is the comprehensive and scaleable source of professional industrial process safety and loss prevention information. Available in print and electronic formats, and online with additional new tools and an annual update schedule, Lees' provides users with the information they require to ensure process safety. Volume 1 covers legislation, engineering and design: Key topics include law; major hazard control; economics and insurance; reliability engineering; hazard identification; hazard assessment; process design; pressure system design; control system design; emission and dispersion; and fire. Volume 2 covers operation and practical safety: Key topics include explosion, toxic release, plant operation, storage, transport, emergency planning, personal safety, accident research, reactive chemicals, safety instrumented systems, and chemical security. Volume 3 contains the case histories and data, including ACMH model license conditions; HSE guidelines' public planning inquiries; standards and codes; process safety management (PSM) regulations in the United States; risk management program regulations * THE process safety encyclopedia, trusted worldwide for over 30 years * Now available in print and online, to aid searchability and portability * Over 3600 print pages cover the full scope of process safety and loss prevention, compiling theory, practice, standards, legislation, case studies and lessons learned, in one resource as opposed to multiple sources.