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

Nominations will be available soon, learn more about the awards.

2020 ISA Conference Call for Presentations

The International Society of Arboriculture will be accepting presentation submissions for the 2020 ISA Annual International Conference & Trade Show in the coming weeks. Check back for further details.

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

September 16-20, 2019

Qualified Line Clearance Arborist (QLCA)

Binghamton, NY United States

September 17, 2019

Common Fungi Affecting PNW Trees and Implications for Tree Risk Assessment

Seattle, Washington United States Seward Park Audubon Center

September 18, 2019

Common Fungi Affecting PNW Trees and Implications for Tree Risk Assessment

Seattle, Washington United States Seward Park Audubon Center

September 19-20, 2019

ISA RMC Annual Conference

Westminster, CO United States Noah's Event Center

September 19-20, 2019

Aerial Rescue

Baton Rouge, LA United States LSU AG, Burden Botanic Gardens