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

May 23, 2019

Advanced Tree Appraisal: Anchoring Appraisals with Multiple Methods

Surrey, BC Canada Rotary Field House at South Surrey Recreation Center Complex

June 3-5, 2019

ACTE - Modern Tree Climbing Systems - New Course!

Vancouver, British Columbia Canada

June 3-5, 2019

ACTE - Modern Tree Climbing Systems - New Course!

Calgary, Alberta Canada

June 5, 2019

EHAP Workshop

Denver, CO United States PPA Event Center

June 5, 2019

EHAP Workshop

Denver, CO United States PPA Event Center