A Logging Safety Manual provides written occupational safety and health programs, procedures, and responsibilities for logging companies, timber harvesting contractors, loggers, mechanical harvesting operations, and other employers engaged in felling, processing, moving, loading, and transporting trees and logs.
Logging employees may work around falling trees, danger trees, chainsaws, skidders, feller-bunchers, harvesters, forwarders, log loaders, chippers, moving logs, steep terrain, heavy equipment, overhead hazards, vehicles, and changing environmental conditions.
Many logging operations also take place in remote areas where terrain, weather, limited communications, and distance from emergency medical services can significantly increase the consequences of an injury.
An effective Logging Safety Manual should reflect the company’s actual harvesting methods, equipment, terrain, timber, work locations, employee duties, and site-specific hazards.
Federal OSHA maintains a specific Logging Operations standard, 29 CFR 1910.266, addressing occupational hazards associated with logging operations.
The standard applies to operations associated with felling and moving trees and logs from the stump to the point of delivery, including activities such as:
Hazards or working conditions not specifically addressed by the Logging Operations standard may be covered by other applicable occupational safety and health requirements.
The federal Logging Operations standard does not cover the construction or use of cable yarding systems. Companies performing specialized cable logging or other operations outside the scope of the federal logging standard should determine which federal, state, and other requirements apply to that work.
The contents of a Logging Safety Manual should reflect the logging operations actually performed.
Depending on operations, the manual may address:
Programs and procedures should be selected according to the company’s harvesting methods, machines, vehicles, timber, terrain, and employee exposures.
An effective Logging Safety Program establishes responsibilities and procedures for identifying hazards, safely harvesting timber, maintaining equipment, preventing employee injuries and illnesses, and responding to emergencies.
Management should provide employees with appropriate equipment, PPE, training, supervision, maintenance resources, communication methods, and safe work procedures.
Managers, supervisors, and designated safety personnel should:
Employees should follow established procedures, use required PPE, inspect equipment, maintain safe separation from logging hazards, communicate with other employees, and promptly report unsafe conditions, injuries, equipment defects, danger trees, and other hazards.
A site-specific Safety and Health Plan can be used to organize the hazards and controls associated with a logging site.
The plan may address:
Site conditions should be evaluated as harvesting progresses because logging hazards can change substantially during the course of the work.
A Tree Harvesting Plan should evaluate the hazards associated with the specific logging site.
Potential considerations include:
The plan should coordinate operations so one employee’s work does not create a hazard for another.
Logging sites should be evaluated regularly for changing hazards.
Conditions may change because of:
Employees should communicate significant changing conditions to affected coworkers and supervisors.
Logging work areas should be arranged so the actions of one employee do not create a hazard for another.
Trees should not be felled into adjacent occupied work areas.
Appropriate separation should consider:
Adjacent occupied felling areas generally require separation of at least two tree lengths, with greater separation where rolling or sliding trees or logs are reasonably foreseeable.
Employees should not approach a manual feller closer than two tree lengths of the trees being felled until the feller acknowledges that it is safe to approach, except where a properly planned team operation is necessary for the particular tree.
Employees should similarly remain at least two tree lengths from mechanical felling operations until the machine operator acknowledges that it is safe to approach.
Employees performing logging operations at a logging worksite should work in locations that allow visual or audible contact with another employee.
Communication may involve:
Engine noise should not be relied upon as a communication signal.
The employer should maintain procedures to account for each employee at the end of the workshift.
Remote operations should have practical methods for determining whether all employees have safely returned from their assigned work areas.
Hand signals or audible communication should be used when noise, distance, restricted visibility, or other conditions prevent employees from clearly understanding normal voice communication.
Only the designated person should give operating signals except during an emergency.
Signals should be understood by affected employees before work begins.
A danger tree may include a tree, snag, lodged tree, damaged tree, or other tree condition that could create a hazard to employees.
Danger trees should be identified before employees begin work in the affected area.
Each danger tree should be:
Removal methods should minimize employee exposure.
Before a danger tree is felled or removed, employees should evaluate it for:
Accessible loose material that could endanger employees should be removed or otherwise controlled before the tree is felled or removed.
If a danger tree cannot be safely felled or removed, it should be clearly identified and employees should remain outside the hazardous area.
Work should generally not occur within two tree lengths of the danger tree unless it has been determined that a shorter distance does not create an employee hazard.
Broken limbs, hanging branches, and other suspended tree material can fall unexpectedly.
Employees should inspect the tree and surrounding canopy before:
Employees should not work beneath uncontrolled overhead hazards.
A lodged or hung tree is a tree that has not fallen completely because it is supported by another tree or object.
Lodged trees are extremely hazardous.
Employees should not continue ordinary work beneath or immediately around a lodged tree.
Mechanical or other appropriate techniques should be used to bring the tree down while minimizing employee exposure.
Domino felling is prohibited.
Employees should not partially cut multiple trees and then attempt to push them over with another tree.
Felling another single tree to bring down a single danger tree should be performed only in accordance with applicable safe procedures.
Manual tree felling requires careful evaluation before cutting begins.
Before felling a tree, the feller should evaluate:
The tree should be felled in a manner that does not create a hazard for employees.
The feller should determine the intended direction of fall before cutting begins.
Considerations may include:
The selected direction should minimize hazards to employees.
The expected fall path should be evaluated for:
Where practical, hazards should be removed or the felling direction changed.
Before felling begins, the feller should plan and clear a retreat path.
The retreat path should extend diagonally away from the expected felling line unless another path provides greater safety.
The path should be cleared of obstacles that could interfere with rapid movement.
After the back cut has been made and the tree begins to fall, the feller should immediately retreat a safe distance using the planned path.
The feller should remain aware of the falling tree and overhead hazards while retreating.
Employees should not remain near the stump merely to watch the tree fall.
The butt of a falling tree may:
The retreat path should be selected to reduce exposure to these hazards.
Where rolling or sliding trees or logs are reasonably foreseeable, felling should be performed uphill from or on approximately the same level as previously felled trees.
Employees should not position themselves downhill where moving logs or trees could strike them.
Manual felling cuts should be made using appropriate techniques that maintain control of the tree’s direction of fall.
Employees performing felling should be trained in:
Improper cuts can cause loss of directional control.
Appropriate hinge wood should be maintained to help control the tree during the fall.
The feller should understand how:
affect the tree’s movement.
Felling wedges may be used where appropriate to assist with directional control and prevent the tree from settling backward onto the saw.
Employees should use wedges appropriate to chainsaw felling operations.
Chainsaws used in logging should be maintained in safe operating condition.
Before use, employees should inspect applicable components such as:
Defective saws should not be used until repaired.
Chainsaws should be started using a stable method that provides control of the saw.
Employees should maintain control of the saw and keep the chain away from their body and other employees.
Unsafe drop-starting methods should not be used.
Employees should:
Kickback can occur when the upper portion of the guide-bar nose contacts an object or the chain becomes pinched.
Employees should:
When carrying a chainsaw over significant distances, the saw should be shut down or the chain brake engaged as required.
Even over shorter distances, the saw should be shut down or the chain brake engaged when terrain, underbrush, slippery surfaces, or other conditions create a hazard.
Chainsaws should be fueled in areas where ignition hazards are controlled.
Employees should:
The saw should be moved an appropriate distance from the fueling area before restarting.
Employees operating chainsaws should use appropriate leg protection constructed with cut-resistant material as required.
Leg protection should be inspected and maintained in serviceable condition.
Damaged protective equipment should be replaced.
Employees operating chainsaws should use foot protection appropriate to chainsaw hazards and logging conditions.
Footwear should also provide suitable traction for terrain, timber, and weather conditions.
Limbing can expose employees to:
Before cutting, employees should evaluate how limbs are supporting the tree and where stored energy may be present.
A spring pole is a tree, limb, or sapling held under tension.
Cutting a spring pole improperly can cause sudden violent movement.
Employees should identify stored energy and use a cutting method that controls the release of tension.
Employees should position themselves to reduce exposure to:
Where possible, the log should be between the employee and the saw during appropriate limbing operations.
Bucking involves cutting felled trees or logs into desired lengths.
Before bucking, employees should evaluate:
Cuts should be planned to control movement.
Logs supported unevenly can contain substantial stored energy.
Employees should evaluate which side is under tension and which side is under compression before cutting.
Employees should remain outside the anticipated movement path.
Logs on slopes should be chocked, stabilized, or approached using methods that prevent unexpected rolling.
Employees should not work downhill from an unstable log.
Chippers can expose employees to:
Employees should receive appropriate training before operating or feeding a chipper.
Chipper infeed and discharge areas should be guarded to protect employees from operating components.
Access covers or doors should not expose employees to moving components.
Required guards should remain in place.
Employees should use safe feeding methods that keep their bodies away from the infeed mechanism.
Loose clothing, ropes, and other items that could become entangled should be controlled.
Employees should remain alert to branches that can move unexpectedly as material is fed.
Before employees perform maintenance, clear jams, or enter hazardous areas of a chipper, hazardous energy and movement should be controlled.
Employees should recognize that chipper drums and discs can continue moving after power is shut off.
Mechanical logging may involve equipment such as:
Only designated and appropriately trained employees should operate logging machines.
Logging machines should be inspected before initial use during each workshift.
The inspection should identify defects or damage that could affect safe operation.
Unsafe machines should be repaired or removed from service before work begins.
Operating and maintenance instructions should be available to machine operators and maintenance employees.
Employees should operate and maintain equipment within the manufacturer’s limitations.
Rated capacities should not be exceeded.
Before starting or moving a machine, the operator should determine that employees are clear of the machine’s path.
Machines should be operated at sufficient distance from employees and other machines to prevent hazardous interaction.
Feller-bunchers can expose employees to hazards involving:
Employees should remain outside the mechanical felling area until the operator acknowledges that it is safe to approach.
Harvesters and processors may combine felling, delimbing, measuring, and bucking operations.
Operators should remain aware of:
Employees on foot should remain outside hazardous operating areas.
Skidders may expose employees to:
Operators should work within the machine’s stability and operating limitations.
Forwarders transport logs off the ground within a load bunk.
Operators should consider:
Loads should be arranged to maintain machine stability.
Log loaders should be operated only by designated employees.
Employees should remain clear of:
Only employees whose duties require their presence should remain in active loading areas.
Covered logging machines should be equipped with required rollover and falling-object protective structures.
Protective structures should be maintained in serviceable condition.
Employees should not modify protective structures in ways that could compromise their effectiveness.
Seat belts provided for logging machines should be maintained and used as required.
Seat belts and rollover protective structures work together to help protect machine operators during rollovers.
Steps, handholds, and access areas should be maintained to reduce falls while entering or leaving equipment.
Employees should use provided access systems and avoid jumping from machines.
Mud, ice, oil, and debris should be removed from access areas.
Logging machinery should have appropriate guarding for exposed moving components.
Potential hazards include:
Guards should remain in place while equipment is operating.
Logging-machine brakes should be maintained in serviceable condition.
Service brakes should be capable of controlling the machine and its rated load on the slopes where the equipment is operated.
Required parking and secondary braking systems should also be maintained.
Hydraulic systems can contain hazardous stored pressure.
Employees should:
Hydraulic injection injuries require prompt medical attention.
Employees should not work beneath raised booms, blades, grapples, loader components, or other equipment unless it has been securely blocked or supported against unintended movement.
Hydraulic pressure alone should not be relied upon during maintenance.
Yarding involves moving felled trees or logs from the point of felling to a landing.
Employees should remain clear before logs or yarding lines are moved.
The yarding operator should clearly receive and understand the appropriate signal before movement begins.
Logs being skidded can:
Employees should remain outside the path of moving logs and equipment.
Employees connecting or disconnecting chokers should position themselves to avoid unexpected log movement.
Where practical, chokers should be attached and removed from safer positions, considering slope and potential log movement.
Logs should be stabilized when necessary.
Winching should be performed within the stability limits of the machine.
Employees should remain outside hazardous areas involving:
Employees should not straddle or stand unnecessarily close to tensioned lines.
Cable yarding systems require specialized procedures because of hazards involving towers, lines, rigging, tensioned systems, logs, terrain, and communication.
The federal OSHA Logging Operations standard does not cover the construction or use of cable yarding systems.
Employers performing cable yarding should determine and follow the specific federal, state, equipment, and other requirements applicable to their operations.
A landing is an area where logs are placed after yarding and before transportation from the worksite.
Landings should be arranged to provide adequate room for:
Logs should be placed in stable arrangements.
Log decks should be maintained to reduce uncontrolled rolling or sliding.
Employees should avoid standing:
Only the machine operator and employees whose duties require their presence should remain within active loading areas.
Employees should remain clear of suspended or moving logs.
Logs should not be carried over unprotected employees.
Transport vehicles should be positioned to provide appropriate working clearance during loading and unloading.
Drivers should follow established procedures and remain in designated safe areas.
Logs should be loaded and positioned to prevent unintended movement, slippage, or loss during handling and transportation.
Employees should evaluate:
Load securement should be applied and released using procedures that protect employees from shifting or falling logs.
Employees should position themselves outside anticipated release paths.
Unloading procedures should account for the possibility that logs have shifted during transportation.
Employees should evaluate the load before releasing restraints.
Logs should be controlled to prevent uncontrolled rolling or falling.
Logging vehicles should be maintained in serviceable condition and inspected before initial use during each workshift.
Defects affecting safe operation should be repaired before the vehicle is used.
Operators should possess the appropriate license for the vehicle operated.
Vehicles should have suitable steps and handholds where necessary for safe entry and exit.
Employees should maintain secure contact and avoid jumping from vehicle cabs or equipment.
Logging roads may involve:
Drivers should operate at speeds appropriate to road and weather conditions.
Before backing, drivers should determine that the path is clear.
Spotters or other controls should be used when necessary.
Drivers should stop if they lose visual or audible communication with a spotter.
Logging machines transported between sites should be:
Employees should remain clear of equipment movement and potential rollover areas.
Logging operations near overhead electrical lines should maintain applicable clearances and follow appropriate electrical-safety procedures.
Hazards may involve:
Employees should never assume an overhead electrical line is de-energized.
Felling trees near energized power lines requires specialized planning.
The employer should evaluate:
Work should not proceed when electrical hazards cannot be adequately controlled.
Logging PPE should reflect the employee’s assigned tasks and hazards.
Depending on the work, PPE may include:
Required PPE should be inspected before use and maintained in serviceable condition.
Employees exposed to falling or flying objects should use appropriate head protection.
Logging employees should remain aware that head protection cannot substitute for controlling danger trees and overhead hazards.
Eye protection should be used where employees may be exposed to flying material.
Face protection may be necessary during activities such as:
Appropriate mesh screens or other suitable protection may be used where permitted for the task.
Chainsaws and logging machinery can generate hazardous noise.
Employee exposure should be evaluated and appropriate hearing-protection and Hearing Conservation measures implemented when required.
Hand protection should be selected according to the employee’s work.
Potential hazards include:
Gloves should not create additional entanglement hazards around machinery.
Logging operations are particularly affected by environmental conditions.
Work should be stopped and employees moved to a safe location when conditions create an uncontrolled hazard.
Potential conditions include:
Wind can substantially change the direction or behavior of falling trees.
Manual and mechanical felling should stop when wind makes tree movement unpredictable or otherwise creates an employee hazard.
Employees should follow established procedures when electrical storms approach.
Work should be suspended when lightning or related conditions create a hazard.
Employees should move to an appropriate place of safety.
Precipitation may affect:
Operations should be modified or suspended when conditions cannot be safely controlled.
Dense fog or other conditions that prevent employees from safely observing trees, equipment, signals, or coworkers may require work to stop.
Communication systems should not be used to justify work where visibility itself creates an uncontrolled hazard.
Logging employees may be exposed to cold stress, frostbite, hypothermia, reduced dexterity, and slippery conditions.
Procedures should consider:
Logging can also involve strenuous physical work during hot conditions.
Heat-illness prevention procedures should consider:
Employees should understand signs and symptoms of heat illness.
Logging operations may be affected by wildfires or other forest fires.
Emergency procedures should address:
Employees should not remain in areas where fire conditions threaten safe evacuation.
Heavy rain, steep terrain, road cuts, and disturbed soil may contribute to slides or unstable ground.
Employees should report signs of:
Work should be suspended where terrain conditions create an uncontrolled hazard.
Logging operations may use:
Fuel should be stored, transported, and handled using appropriate containers and procedures.
Ignition sources should be controlled.
Required fire extinguishers should be provided on applicable logging machines and vehicles and maintained in serviceable condition.
Employees expected to use extinguishers should understand their proper use and limitations.
Some logging operations may use explosives or blasting agents.
Only appropriately trained, qualified, and authorized employees should perform blasting-related work.
Explosives should be transported, stored, handled, and used according to applicable requirements.
Hand and portable powered tools should be maintained in safe operating condition.
Before use, employees should inspect applicable:
Defective tools should be repaired or removed from service.
Logging equipment maintenance may expose employees to:
Maintenance should be performed using procedures appropriate to the equipment and hazards.
Before servicing machinery, employees should identify and control hazardous energy.
Potential energy sources include:
Applicable Lockout/Tagout or other required energy-control procedures should be followed.
Employees should not enter hazardous machine areas to clear jams while uncontrolled energy or movement is present.
Machines should be stopped and hazardous energy controlled before employees enter danger zones.
Logging operations may use hazardous chemicals such as:
Applicable Hazard Communication procedures should address:
Logging operations frequently occur in remote locations where professional emergency medical care may not be immediately available.
Logging employees, including supervisors, should receive required first-aid and CPR training.
Training should meet applicable Logging Operations requirements.
First-aid kits should be provided at required logging locations.
These include applicable:
The number and contents of first-aid kits should reflect the number of employees, anticipated hazards, and isolation of the worksite.
Before work begins, employees should know how emergency medical assistance will be obtained.
Planning should consider:
Reliable communication methods should be established for remote logging operations.
Depending on the location, methods may include:
Employees should know how to report an emergency and provide their location.
Logging crews should be able to provide emergency responders with enough information to locate an injured employee.
Information may include:
Access routes should be kept usable where practical.
Employees should understand procedures for responding to:
Employees should not expose themselves to uncontrolled hazards while attempting rescue.
Logging employees should not perform logging operations in isolation where they cannot maintain the required visual or audible contact with another employee.
Work organization and communication procedures should support prompt recognition when an employee needs assistance.
Logging employees, including supervisors, should receive training before initial assignment as required.
Additional training should be provided when employees are assigned:
Training is also required when an employee demonstrates unsafe job performance.
Training should address, as applicable:
Employees should demonstrate the ability to safely perform assigned work.
Chainsaw operators should receive task-specific instruction addressing:
Employees should not perform manual felling until they can safely perform the assigned work.
Logging-machine operators should receive instruction appropriate to the equipment they operate.
Training should address:
New employees should receive site and job-specific safety information before beginning work.
Orientation may address:
Additional training should be provided when:
Periodic safety meetings can reinforce required work practices and address changing site conditions.
Potential topics include:
Employees should promptly report:
Prompt reporting helps identify hazards before similar incidents occur.
Significant incidents should be investigated to identify:
Investigations should consider:
Root Cause Analysis may identify underlying issues involving:
Corrective actions should address identified causes rather than simply assigning blame.
Logging employers should maintain occupational safety and health records required for their operations.
Records may include:
Records should be maintained according to applicable requirements.
Depending on logging operations and employee exposures, additional programs may be necessary for:
Programs should be included when the company’s harvesting methods, equipment, vehicles, timber, terrain, chemicals, and employee exposures make them applicable.
A useful Logging Safety Manual should reflect the company’s actual harvesting methods.
A manual logging company may require extensive procedures for chainsaws, manual felling, danger trees, retreat paths, limbing, bucking, PPE, weather, communication, and first aid.
A mechanized logging company may require greater emphasis on feller-bunchers, harvesters, processors, skidders, forwarders, log loaders, machine inspections, protective structures, hydraulic systems, blind areas, and equipment maintenance.
A company performing both manual and mechanical logging will need procedures for coordinating the two operations and maintaining safe separation between employees, falling trees, moving logs, and machinery.
A company operating remote sites may require more extensive emergency communication, first-aid, transportation, and employee-accountability procedures.
A company using specialized cable yarding systems may require additional procedures and regulatory evaluation beyond the scope of the federal OSHA Logging Operations standard.
The safety manual should therefore be based on the logging work actually performed rather than automatically assigning every forestry-related program to every employer.
A Logging Safety Manual can be developed around the company’s tree-felling methods, chainsaws, skidders, feller-bunchers, harvesters, forwarders, loaders, chippers, log trucks, landings, terrain, timber, employees, and other occupational hazards.
The finished manual may incorporate applicable programs for Tree Felling, Chainsaw Safety, Mobile and Heavy Equipment, Loading and Unloading, Machine Guarding, Hazardous Energy Control, PPE, Hearing Conservation, Severe Weather, Emergency Response, First Aid, and other hazards associated with timber harvesting.
This provides logging companies, timber harvesters, logging contractors, and mechanical harvesting operations with a practical safety manual organized around the work their employees actually perform.