ISA Board Certified Master Arborist®

ISA Certification is a voluntary program that tests and certifies a professional’s achievement of a standard level of knowledge and skill in the field of arboriculture. When a professional becomes an ISA Board Certified Master Arborist, they should be recognized by their peers and the public as a tree care professional who has attained the highest level of certification offered by ISA. Current ISA Certified Arborists® may earn this credential by meeting additional education and/or experience eligibility criteria and passing a comprehensive exam that tests their knowledge and skills of the science, managerial and practical application of arboriculture in areas such as risk assessment, safety, tree preservation, pruning, diagnostics, among other subject and practice areas within the tree care profession as identified through periodic job task analyses.