Frequently Asked Questions
What is a Board Certified Master Arborist?
The International Society of Arboriculture (ISA) Board Certified Master Arborist credential is the highest level of certification oﬀered by ISA. This credential recognizes ISA Certified Arborists who have reached the pinnacle of their profession. In addition to passing an extensive scenario-based exam, candidates must abide by a Code of Ethics, which ensures quality of work. Fewer than two percent of all ISA Certified Arborists currently hold this certification.