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 21 December 2018 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

October 17, 2018

ACTE - Chainsaw Safety & Cutting Techniques

Calgary, Alberta Canada

October 17, 2018

ACTE - Chainsaw Safety & Cutting Techniques

Innisfil, Ontario Canada

October 18-19, 2018

ACTE - Technical Tree Falling & Cutting

Calgary, Alberta Canada

October 18-19, 2018

ACTE - Technical Tree Falling & Cutting

Innisfil, Ontario Canada

October 18-19, 2018

ACTE - Technical Tree Falling & Cutting

Vancouver, British Columbia Canada