Arborist

Anonymous

Colorado (OA)

Documents

Individual state requirements may vary. Please contact your local apprenticeship office to ensure this version is suitable to your state’s requirements.

Work Process Schedule

Work Process Content

On the Job Training

Anonymous

Skills

OJT hours

Adhere to ANSI and employer safety standards for all work.

500

Inspect, maintain and use the appropriate personal protective equipment.
Inspect, maintain and use the appropriate tool, equipment or vehicle.
Assess trees for defects and hazards.
Establish and maintain safe work sites and zones.
Demonstrate safety practices unique to working aloft.
Comply with federal and state occupational safety and health regulations.

Identify common trees and shrubs in the employer’s region.

200

Deciduous
Evergreen

Perform rigging on the ground and aloft.

600

Determine the removal plan.
Estimate the maximum load weight based on equipment available.
Install and use a rigging system to lower the load directly to the ground.
Install and use a rigging system to move the load laterally.

Access trees safely.

Perform pre-work inspection of all equipment.
Perform a pre-work inspection of the tree and site.
Demonstrate appropriate use of personal fall protection equipment for work aloft.
Access tree canopy.
Position to work aloft.
Maneuver safely through canopy; avoid electrical and other hazards.
Properly retrieve and stow all gear and equipment.

Operate a chain saw on the ground and aloft, and perform field maintenance.

800

Safely start and control the chain saw.
Perform brush cutting.
Perform felling.
Perform limbing and bucking.
Cut wood under tension and compression.
Perform removal cuts.
Perform pruning cuts.
Safely secure and transport the chain saw.
Perform field maintenance.

Operate a chipper.

300

Prepare brush and wood.
Position the chipper.
Chip brush and wood.

Prune trees and shrubs from the ground and aloft, according to ANSI A300.

Interpret an ANSI A300 pruning specification, and to convert the specification into a work order.
Address the following pruning objectives: reduce hazards, improve aesthetics, provide clearance, and improve structure.
Perform pruning cuts using the appropriate hand tools and pole tools.
Perform a correct branch reduction cut.
Perform a correct branch removal cut.
Accurately prune without cutting into the collar or branch bark ridge.
Accurately prune when there is a narrow angle of branch attachment.
Prune using a 3-cut method to avoid damage and tearing.
Perform pruning of shrubs.