ISA Certified Arborist Practice Test
400 Questions that simulates the topics & difficulty of the actual exam
"The practice exam very much mirrored the actual test." - Ron P.
Sample Arborist Test Question:
1 of 200 Practice Questions Available in our Guides
What macro-nutrient most often has the largest requirement for the health of trees?
A). Iron
B). Sulfur
C). Potassium
D). Nitrogen
(Hover Over)
About the ISA Arborist Exam
The Certified Arborist Exam is administered by the International Society of Arboriculture (ISA), and is designed to demonstrate professional knowledge of tree biology, safety practices, diagnosis, and other arboriculture-related topics.
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Eligibility Requirements
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In order to apply to for the exam, applicants must either...
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have at least three years of full-time experience in arboriculture
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have a 4-year degree in a related field, with one year of experience or a two-year degree in arboriculture, with two years of experience
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Please note: Using multiple degrees to fulfill degree requirements is not acceptable.
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Arborist Exam Breakdown
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The exam is divided into ten areas of expertise (listed below).
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Pruning (16%)
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Safe Work Practices (15%)
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Tree Risk Management (13%)
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Diagnosis and Treatment (12%)
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Soil Management (12%)
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Identification and Selection (8%)
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Tree Biology (8%)
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Urban Forestry (7%)
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Installment and Establishment (5%)
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Tree Protection (4%)
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These ten sections will total 200 multiple-choice questions in the end. However, 20 of these questions will not count towards the final score.
