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 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

March 28-29, 2019

2-Day Entry Level Arboriculture Short Course

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

March 28, 2019

WCISA - Western Tree Failure Database Annual Meeting

Fullerton, CA United States Fullerton Community Center