Standardization and classification of controlled environment spaces and fixing of criteria for controlling contamination in such spaces. Guidance on the design, taking into account sources of contamination; air, liquid, materials, equipment and personnel as well as their interactions. Guidance on biocontamination control is included, as are provisions for the control of molecular contamination. Methods of aseptic processing are excluded, as are methods of cleaning and disinfection except with particular reference to inert surfaces in cleanrooms. The field of competence of the committee embraces all aspects of cleanroom technology, including the classification of controlled environments, the achievement of contamination control in such environments and the design, construction and operation of cleanroom technology.