ETi - Employee Training Institute




Arborist Training

Professional, trained arborists, know how to properly maintain trees for the safety of the public and the health of the tree.

The skills that the Utility Line Clearance Arborist trainees receive, provide knowledge in safe tree work practices, tree identification and biology, pruning, trimming and removal techniques and the ability to work as a member of a tree care crew using equipment such as chippers, chainsaws, ropes, and bucket trucks to accomplish their job.

Arborists have the knowledge and understanding of trees and shrubs common to their location. This knowledge helps them assess the condition of the trees, provide a diagnosis for potential diseases, and offer their recommendations on how to properly care and maintain the tree.

The Utility Line Clearance Arborist performs pruning, trimming, removal and clearing of trees or brush around electrical power generation, transmission or distribution lines or equipment on behalf of an organization that operates, or that controls the operation of those lines and equipment. This requires the Utility Line Clearance Arborist to be familiar with the special techniques and hazards involved in line-clearance tree trimming to prevent contact with energized lines by themselves, their equipment, or by the trees they maintain. This requires special training as outlined by OSHA.

The utility line clearance arborist’s focus is to reduce the fire hazard caused by trees, branches or other debris coming in contact with energized power lines using safe work practices.

Job Outlook for Arborist

A Line Clearance Tree Trimmer will make no less than first-step apprentice starting wages as Groundsperson at $21.63 and Arborist at $25.23.

The cost of training, materials & equipment is funded by a grant from Pacific Gas and Electric and San Diego Gas and Electric.

Course Objectives

Prerequisites and Requirements

There are no prerequisites to take this course. Trainees are required to be present at every class session to receive a certificate.


MODULE 1 Arborist Intro & General Safety
Day 1 - Introduction to Arboriculture Industry
Day 2 - OSHA 10 & First aid
Day 3 - OSHA 10 & CPR
Day 4 - Communications & Tree ID
Day 5 - ANSI Z133 & Knots

MODULE 2 - Mobile Equipment & Jobsite
Day 1 - Jobsite Setup, Flagger Training & PPE
Day 2 - Mobile Equipment, Herbicides
Day 3 - Fire Prevention
Day 4 - Site Inspections & Use of Chippers
Day 5 - Chipper Operations

MODULE 3 - Chainsaw & Chipper Operations
Day 1 - Chainsaw Maintenance & Cutting
Day 2 - Jobsite, Chainsaw & Chipper
Day 3 - Tree felling, Chippers & Winches
Day 4 - Tree Felling & Chainsaw Operations
Day 5 - Electrical Hazards & Aerial Lift

MODULE 4 - Electric Hazards, Pruning & Climbing
Day 1 - Electric Hazards, Tree Biology
Day 2 - Pruning & Climbing Basics
Day 3 - Climbing Basics
Day 4 - Climbing Practice
Day 5 - Knot & Climbing Assessment

MODULE 5 - Skills Practice & Assessments
Day 1 – Aerial, Chain Saw & Chipper Practice
Day 2 - Aerial, Chain Saw & Chipper Practice
Day 3 - Aerial, Chain Saw & Chipper Practice
Day 4 - Aerial, Chain Saw & Chipper Practice
Day 5 - Safety, Test & Graduation

Arborist training is in collaboration with:


New cohorts starting soon!
Don't miss out.