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 22, 2019

Precision Chainsaw Cutting & Felling

Richmond Hill, GA United States Vermeer Southeast - Savannah

March 22, 2019

TCIA's Electrical Hazard Awareness Program (EHAP)

Eugene, OR United States City of Eugene Public Works

March 23, 2019

Watershed Moments-Carroll County Forestry Board Spring-Thaw Workshop

Sykesville, Maryland United States Wesley Freedom United Methodist Church

March 23-24, 2019

Georgia Tree Climbing Championships

Winterville, GA , GA United States Pittard Park

March 25, 2019

Basics of Tree Biomechanics

Bend, Oregon United States Central Oregon Community College