Arborist Boulder

The International Society of Arboriculture (ISA) is the tree care industry’s standard for certification in the field of a arboriculture.

Arboriculture is the cultivation or care of trees, shrubs, bushes and other woody, perennial plants.

What does it mean to be an ISA Certified Arborist?

We must fulfill the experience and educational requirements and pass the ISA exam in order to become certified. Below are the prerequisites to take the exam and the domains we must pass to qualify.


* Prerequisite to taking the ISA exam: A person must have been employed full-time in the field of arboriculture for a minimum of three years or two year degree in arboriculture and two years practical experience or four year degree in a related field and one year of practical experience.

* Domains we must demonstrate knowledge of and pass on the ISA exam:


The International Society of Arboriculture requires us to continue our education in order to maintain our ISA Certified Arborist certification statues. We are required to complete 30 continuing education units (CEUs) every three years and pay the re-certification fee.

Boulder Tree Care is commented to providing the highest quality of Plant Health Care.

* Reference – ISA Certified Arborist Handbook/Application – International Society of Arborculture. Revised 08/09