ISA Certified Arborist® (CA) Examination
The ISA Certified Arborist exam tests competency in professional arboriculture across 10 knowledge domains including tree biology, pruning, soil management, diagnosis, tree risk, and safe work practices. It is the leading credential for tree care professionals administered by the International Society of Arboriculture.
200
Questions
210 min
Time Limit
76%
To Pass
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Exam Rules
- You can skip questions and return to them later
- Flag questions for review before submitting
- No feedback shown until you submit the entire exam
- Unanswered questions count as wrong — answer everything
- 10 pretest questions are mixed in and don't affect your score
- Timer auto-submits when time runs out
- Your progress is auto-saved every 30 seconds