Certified Tree Worker Safety Specialist Training (CTWSS)

Course Description

Workers in various industries and occupations are involved in the care and maintenance of trees, such as tree trimming, pruning, and removal. During 1992–2007, a total of 1,285 workers died while performing tree care and maintenance; 44% were trimming or pruning a tree when fatally injured.

Common Causes of Fatalities
The most common causes of death were:

Being struck by or against an object (42% of deaths), most commonly a tree or branch.

Falls to a lower level (34%).

Electrocutions (14%).

Most of the decedents (57%) worked for small establishments with 10 or fewer employees.

Safety Recommendations
Employers, trade and worker associations, and policymakers should take additional steps to improve the safety of workers involved in tree care, such as providing formal training to workers and ensuring that personal protective equipment and safe work procedures are used.

Learning Outcomes

Identify hazards associated with tree trimming, cutting, climbing, and ground operations, including struck-by, falls, electrical contact, and equipment risks.

Apply safe work practices for chainsaw operation, rigging, climbing gear, aerial lifts, and ground support procedures.

Conduct job hazard assessments, emergency response planning, and implement ANSI/OSHA standards for arborist operations.

Demonstrate proper use, inspection, and maintenance of PPE, climbing equipment, and cutting tools to ensure operational safety.

Target Audience

Tree Workers & Arborists

Landscaping & Grounds Maintenance Personnel

Municipal & Public Works Crews

Utility Line Clearance Workers

Safety Officers & Coordinators

Facility & Maintenance Staff

Line Supervisors & Team Leads

Program Administrators