Contact Us

Email us
Phone: +1.678.367.0981
Fax: +1.240.547.1795

Headquarters Address

International Society of Arboriculture
270 Peachtree Street NW
Suite 1900
Atlanta, GA 30303
United States

Mailing Address

International Society of Arboriculture
PO Box 191
Annapolis Junction, MD 20701
United States

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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Order Delays Due to Physical Inventory

Due to ISA’s annual physical inventory, orders placed between 2 p.m. EDT, Thursday, 20 June 2019, and 11:59 p.m. EDT, Friday, 28 June 2019, will not ship until the week of 1 July 2019.

Please plan your ordering accordingly. We will resume regular turnaround times 1 July 2019.

Thank you for your patience.

Questions? Please call the customer service team at (678) 367-0981.

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

June 28-30, 2019

Taiwan International Tree Climbing Championship

Taipei, Taiwan Taiwan Taipei Park

June 28, 2019

Assessment of Tree Junctions/ Dr. Duncan Slater

Madrid, Madrid Spain Jardín Botánico de Madrid

July 9, 2019

IPM for Woody PlantsHands-On Integrated Pest Management (IPM) Workshop

Toronto, Ontario Canada Mt. Pleasant Cemetery

July 10, 2019

IASHK Space Summer CEU Programmes - Programme 1: Tree Risk Exposure (Identifying System-Level Risk Exposure) with Mark Duntemann (English)

Hong Kong, Hong Kong IASHK Space in Fotan Hong Kong

July 11-12, 2019

IASHK Space Summer CEU Programmes - Programme 2: Board Certified Master Arborist (BCMA) Exam Preparation

Hong Kong, Hong Kong IASHK Space in Fotan Hong Kong

See all events