Belt conveyors-conveyors which use a belt as a carrying medium-are used for the controlled movement of a great variety of regular or irregular shaped commodities, from light and fragile to heavy and rugged unit loads. The path may be level, inclined or declined, limited only by the stability of the commodity and the strength of the conveyor components. Belt conveyors can be operated at the speed best suited for the work being performed. They can be used as a pacesetter for assembly operations, for transportation, or as a timing medium for integrated handling systems. The purpose of this work is to establish certain minimum standards for use by concerns manufacturing or utilizing unit handling belt conveyors. For additional information relating to definitions and selection of common components, see current edition of CEMA Standard No.401, Roller Conveyors-Non Powered. [The illustrations throughout this book are schematic and represent the general nature of a particular device. The illustrations are not intended to represent the recommended safety standards, as guarding has been omitted for clarity of the operational characteristics of the device. Refer to the current editions of American National Standard ASME B20.1, Safety Standard for Conveyors and Related Equipment, and OSHA 29 CFR Part 1910.147,"Control of Hazardous Energy Sources(Lockout/Tagout)]." Grateful acknowledgement is expressed to the Rubber Manufacturers Association for assistance given in preparation of the section on belting.