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

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.

See You In Knoxville!

We're looking ahead to the 2019 ISA International Conference & Trade Show and ITCC in Knoxville, TN!

Upcoming Events

November 16, 2018

Advanced Climbing, Rigging, & Precision Cutting

Jacksonville, FL United States Vermeer Southeast - Jacksonville, FL

November 27-28, 2018

Large Tree Climbing and Rigging

New Brunswick, NJ United States Extension Conference Center

November 28 - December 1, 2018

World Forum on Urban Forests

Mantova, Italy

November 28, 2018

Designing Native and Ecological Plant Communities

Philadelphia, PA United States Morris Arboretum

November 29-30, 2018

37th Annual ISA RMC Pesticide Applicators Workshop

Denver, CO United States PPA Event Center