Contact Us

Email us
Phone: +1.678.367.0981
Fax: +1.240.547.1795

Mailing Address

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

Physical Address

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

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 your for your patience.

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

    Climbers' CornerTree Academy

    Ascent Event: It's Not Just Footlocking Anymore


    The past years have been witness to a rapid evolution of the range of tools and techniques available to arborists. A variety of ascent techniques are being increasingly used by tree climbers to ascend into the canopy of a tree. As the ISA’s International Tree Climbing Championship (ITCC) reflects best work practices, the decision has been made to move toward an Ascent Event versus Secured Footlock to allow competitors to use a wide range of dedicated ascent techniques that are now being used in the tree care industry. The presentation will discuss the proposal for the change and outline how the format reflects best practices.


    Mark Bridge. Active in the tree care industry since 1990. Founding member of the tree care co-op 'Baumpartner' and the training company 'Baumklettern Schweiz'. Member of BSB and ISA work safety committees. ETCC Chairman. ITCC Head Technician. ITCC Competitor, two time ETCC Champion . BSB Diploma in Tree Care. LOLER inspector.

    Climbers' CornerTree Academy

    True True True