ISA Board Certified Master ArboristThe 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.

To be eligible for the exam, you must be an ISA Certified Arborist in good standing and have a sufficient amount of any or all of the following:

  • Measurable experience
  • Formal education
  • Related credentials
  • Professional experience

Accept the challenge and become one of the elite ISA Board Certified Master Arborist. For more information on how to become an ISA Board Certified Master Arborist:

Board Certified Master Arborist Study Materials

While you may use any materials you choose during your exam preparation, we encourage you to use materials that are grounded in best practices and scientific theory, and those that are supported by external reviewers, such as accreditation organizations or governing bodies.

Study Materials

ISA offers a full list of recommended study resources that cover multiple domains in each handbook and in the ISA webstore.