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

Nominate the best professionals in the arboriculture industry by 8 March 2020. Submit your nomination.

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

February 19, 2020

Tree Planting and Installation

New Brunswick, New Jersey United States Extension Conference Center

February 20, 2020

Tree Pruning

New Brunswick, New Jersey United States Extension Conference Center

February 25-27, 2020

Ohio Tree Care Conference

Dayton, OH United States Dayton Convention Center

February 26, 2020

Electrical Hazard Awareness Training with Dr. John Ball

Clearwater, FL United States City of Clearwater Morningside Recreation Complex

February 26, 2020

Managing Insect Pests of Ornamental Plants

New Brunswick, New Jersey United States Extension Conference Center