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 5 February 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

December 12, 2018

Report Writing for Arborists

Oregon City, Oregon United States Clackamas Community College, Environmental Learning Center

December 12-14, 2018

Pesticide Applicator Recertification Workshop

Casper, WY United States All Trees LLC

December 13, 2018

WCISA's Annual Pest and Disease Conference

Oakland, CA United States Jack London Aquatic Center

December 13, 2018

2018 GAA Winter Workshop and Awards Luncheon

Atlanta, GA United States TBD

December 14, 2018

Focus on Arboriculture

Fort Walton Beach, FL United States Fort Walton Beach Rec Center