An invest. of worker safety in grain elevators and feed mills in order to develop safe work practices and engineering controls which could be used to reduce the number of accidents and injuries in the workplace and to train workers in the ident. and awareness of hazards and their controls. A description of grain elevators and feed mills is included along with data correlating accidents with the pop. at risk. Specific hazards assoc. with combustible dust are addressed, as well as other safety hazards. Includes guidelines for training, use of personal protective equip., control of combustible dust, control of ignition sources, emerg. planning, bin entry, isolation and lockouts, machine guarding, safe use of equipment and tools, and other work practices. Illus.