Bucket Trucks & Aerial Devices

Bucket trucks (aerial lifts with a bucket or platform on a boom) put workers up to utility lines, trees, signs, lights and building exteriors. The main killers are electrocution, falls from the bucket, tip-overs and being struck by traffic. Setup, clearance from power lines and fall protection decide who goes home.

• Utility Workers
• Tree Crews
• Sign & Lighting Installers

The equipment and the rules

• Vehicle-mounted aerial devices include telescoping boom, articulating boom, aerial ladder and vertical tower types, with insulated (dielectric) or non-insulated booms.
• Construction work is covered by 29 CFR 1926.453 (aerial lifts), and general industry by 1910.67. Utility and line work is covered by 1910.269 and 1926 Subpart V. The industry standard is ANSI/SAIA A92.2 for vehicle-mounted elevating and rotating aerial devices. See Aerial Lifts and ANSI A92 Aerial Platform Standards.
• Only trained and authorized persons may operate an aerial lift. Training covers the machine, controls, limits, hazards, fall protection and emergency procedures. See Operator Training & Evaluation.
• Follow the manufacturer’s operating manual and load chart, and the employer’s rules.

Before you go up

• Inspect the truck and the lift before each shift: tires, brakes, lights, outriggers, hydraulics and leaks, boom and bucket, controls (both ground and platform), emergency lowering system, bucket liner and insulated parts, and safety devices. Report defects and take the unit out of service if needed. See Equipment Basics.
• Survey the site: look for overhead lines, trees, poles, other equipment, uneven or soft ground, slopes, holes, traffic, pedestrians and weather. Look up and down.
• Set up on firm, level ground. Set the parking brake and chock the wheels as required. Extend and set outriggers or stabilizers fully on pads or cribbing if the ground is soft, and level the truck as the maker instructs. Don’t use the lift if you can’t set up safely. See Blocking & Cribbing.
• Protect the area: use cones, barricades, signs and a traffic control plan, and keep people clear of the work area and the swing of the boom. See Work Zones.
• Test the controls from the ground and from the bucket before work begins, including the emergency lowering function.

Fall protection in the bucket

• Stay inside the basket and keep your feet on the floor. Never stand on the rail, step out of the bucket onto a pole or structure, climb on the boom, or use planks or ladders in the bucket to gain height.
• OSHA requires a lanyard attached to the boom or basket when working from an aerial lift (1926.453(b)(2)(v)), and a full-body harness is the standard practice and the industry requirement. Use the anchorage point the maker provides, and keep the lanyard short, as fall restraint. See Aerial Lifts (fall protection), Fall Restraint and Harness Inspection & Fitting.
• Don’t tie off to an adjacent pole, structure or another vehicle while the bucket is in motion.
• Keep the gate or chain closed, and the bucket free of clutter.
• Wear a hard hat and, near power lines, suitable electrical protective equipment. See Hard Hats.

Power lines and electrical safety

• Assume every overhead line is live and treat all lines as energized unless proven otherwise. Electrocution is the leading cause of death in bucket truck work.
• Keep the minimum approach distance. For lines up to 50 kilovolts, unqualified workers and equipment must stay at least 10 feet away (more for higher voltage). Only trained, qualified line workers may work closer, using proper methods. See Overhead Power Lines and Qualified Electrical Persons.
• Use a spotter to watch the clearance, since depth perception is poor near lines, and wind or sag can change the distance.
• Insulated booms are tested, not magic. Insulated aerial devices must be tested and maintained as required (including dielectric testing of the boom and bucket liner). Dirt, moisture and damage reduce the insulation, so don’t depend on it unless you’re qualified and the unit is tested and clean.
• Ground the truck or use barriers as the utility procedure requires, and treat the truck as energized if it contacts a line. If it does, stay in the truck unless there is fire; if you must leave, jump clear with feet together and shuffle away. See Downed Power Lines.
• For tree crews near lines, only line-clearance-qualified workers should work within 10 feet.

Operating limits

• Don’t exceed the rated load in the bucket (people, tools and materials), and any limit on jib or winch loads. Weigh materials if unsure.
• Operate within the working envelope and the allowed boom positions as the load chart specifies. Don’t overreach.
• Watch the wind and weather. Stop work in high winds, lightning, ice or snow, and other conditions the maker or employer sets.
• Move the boom smoothly and avoid abrupt movements. Watch for obstacles, and for the boom tip swinging as you rotate. Don’t move the truck with the boom raised, unless the maker allows it.
• Never override controls or safety devices, and don’t use the lift as a crane unless it is designed for it.
• Keep clear of the ground controls when the bucket is up, unless the ground person is using them for an emergency.
• Tree work: keep saws secured, use proper tie-in, and keep falling limbs away from the truck and people. See Chainsaw PPE.

Traffic and parking

• Park off the traveled lane when possible, and use traffic control with signs, cones and a shadow vehicle or truck-mounted attenuator on busy roads. See Move-Over Laws.
• Keep the boom and bucket out of the traffic lane when raised. Watch for low bridges and signs when traveling with the boom stowed. Check that it is fully stowed before driving.
• Use high-visibility clothing and beacons. See High-Visibility Clothing.

Emergencies and rescue

• Have a rescue plan before going up, with a ground person trained to use the lower controls and emergency lowering, and a way to call for help. See MEWP Rescue and Emergency Action Plans.
• Never leave a worker stranded. If an operator is injured or unconscious, trained ground staff use the lowering controls. Don’t climb the boom unless trained for rescue.
• If the unit tips or hydraulics fail, stay in the bucket, hold on, and wait for rescue.
• Report any contact with power lines, damage or near misses immediately and take the unit out of service. See Incident Investigation.

Bucket truck checklist

• Pre-shift inspection is done; controls and emergency lowering are tested
• The truck is on firm, level ground with outriggers fully set, wheels chocked and the area protected
• Overhead lines are located; at least 10 feet is kept (more for higher voltage) unless qualified; a spotter is used
• A harness with a short lanyard is attached to the boom or basket anchorage; I stay in the bucket
• Loads and wind stay within limits, and no overriding of controls
• A ground person is ready with a rescue and lowering plan

Last updated: October 5, 2026