Tree Climbing Championship (TCC) Rules Committee

The purpose of the TCC Rules committee is to be an independent body providing a set of competition rules and regulations that are in line with International Safety Standards and that reflect current industry best practices for equipment usage and techniques to be used in conducting international tree climbing competitions.

If you would like to submit a comment, question, or suggestion regarding ITCC rules please use the online submission form.

Rules Committee Chair

Warren Williams
Newborn, GA, United States
(Southern Chapter)

Committee Members

John Coles
Royse, Buskerud, Norway
(Norway Chapter)
Peter Vergote
Temse, Belgium
Belgium Chapter
Tim Bushnell
Oxford, Pennsylvania, United States
(Penn-Del Chapter)
Rip Tompkins
Little Compton, Rhode Island, United States
(New England Chapter)
Jasion Diehl
Doug Sharp
Essendon, Victoria, Australia
(Arboriculture Australia)


ISA Staff Contacts

If you have questions regarding ITCC or would like to volunteer for a committee, please contact us via

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