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

ISA Accepting Nominations for 2019 Awards of Distinction and True Professionals

Nominate the best professionals in the arboriculture industry by 4 March 2019. Submit your nomination!

2019 ISA Conference Call for Presentations

The International Society of Arboriculture is now accepting presentation submissions for the 2019 ISA Annual International Conference & Trade Show. Submit your presentation before the 1 March 2019 deadline.

ISA Expands Certification Eligibility Requirements

ISA has announced expanded eligibility criteria for the ISA Certified Arborist® certification recognizing assessment-based programs to fulfill the education requirements to take the exam.

Upcoming Events

March 25, 2019

Basics of Tree Biomechanics

Bend, Oregon United States Central Oregon Community College

March 25, 2019

Introduction to Pruning Techniques

New Brunswick, NJ United States Holly House

March 26, 2019

Storm-Damaged Tree Cleanup Training

Griffin, GA United States Research and Education Garden, UGA Griffin Campus

March 26, 2019

Storm-Damaged Tree Cleanup Training

Griffin, GA United States Research and Education Garden, UGA Griffin Campus

March 28-29, 2019

Tree School Basics - A 2-Day Short Course

West Palm Beach, FL United States UF-IFAS Palm Beach County Extension