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

February 17-19, 2019

2019 WAA/DNR Annual Conference

Green Bay, WI United States KI Convention Center

February 18, 2019

Assessment of Tree Junctions/ Dr. Duncan Slater

Madrid, Madrid Spain Jardín Botánico de Madrid

February 20-22, 2019

ISA Ontario 70th Annual Conference & Trade Show

Windsor, Ontario Canada Caesars Windsor

February 20, 2019

Tree Planting and Installation

New Brunswick, NJ United States Cook Student Center

February 21-22, 2019

KAA 2019 Annual Conference

Burlington, Kentucky United States Boone County Extension Enrichment Center