The recommended NIOSH standards for preventing occupational injuries and deaths in logging operations are presented along with sections containing data indicating the extent of logging hazards upon which the need for the standards are based, training guidelines and research needs. The standards pertain only to the operations of felling, bucking, limbing, yarding and loading. A detailed list of definitions and detailed illustrations of hand signals for the various logging operations are given. Standards are given specifically for chain saws and hand tools, manual felling and felling using explosives, bucking, skidder maintenance and repair, skidding procedures, choker setting, cable operations, area maintenance in loading, truck loading requirements and worker location in loading. The applicability of each standard is given apropos of the hazard to be prevented--falling and flying objects, rolling and moving logs, chain saw operations, slips, trips and falls and moving equipment. Finally, standards are given for informing employees of hazards, for medical and first aid considerations, for posting, and for personal protective equipment.