Showing the world the benefits of trees

We promote the professional practice of arboriculture to foster a greater awareness of the benefits of trees.

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Keep up with ISA

2020 Awards of Distinction and True Professionals

The nomination period is closedThe 2020 award winners will be annouced at the ISA Annual International Conference and Trade Show.


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July 26-28, 2021


Boalsburg, PA United States

July 30-31, 2021

Baltic States Tree Climbing Championship

Hummuli, Valga county Estonia Hummuli Manor Park

July 30, 2021

Trees and the Law in Canada

One Day Online Workshop, with author and instructor Dr. Julan Dunster United States Starts at 9 am PDT

August 3-31, 2021

Consulting Utility Forester Safety Professional (CUFSP) - 5-week Live Video Conferencing Training

Virtual, United States Live Video Conferencing Training

August 3-24, 2021

OSHA 30-Hour General Industry for Arborists and Utility Forestry Professional - 4-Week Course

Virtual, United States Live Video Conferencing Training