ISA Certified Arborist
ISA-CA
arboristtest.com is your dedicated ISA-CA practice site: 1,000+ exam-style practice questions, organized across all 9 exam domains. Start with the free practice test — no card required.
- practice questions
- 1,000+
- exam domains
- 9
- practice test
- Free
Exam at a glance
- Exam fee
- $200 ISA member / $300 non-member (application fee included)
- Questions on exam
- 200 multiple-choice questions (175 scored + 25 pretest)
- Duration
- 3.5 hours
- Passing score
- Scaled, approximately 76% correct (determined by psychometric analysis)
- Validity
- Valid for 3 years
Published exam facts, from the official outline.
What’s on the ISA-CA exam
- Tree Biology (7%)
- Soil Science (6%)
- Water Management (5%)
- Tree Nutrition and Fertilization (5%)
- Tree Selection and Installation (8%)
- Pruning (12%)
- Diagnosis and Treatment (14%)
- Trees and Construction (5%)
- Urban Forestry (8%)
Official exam blueprint domains — your practice bank mirrors this outline.
The ISA-CA question bank follows the official exam blueprint across 9 domains, so your practice mirrors the real outline — and shows you exactly where you’re weak. See the full blueprint on arboristtest.com →
Your ISA-CA prep is one click away
The free ISA-CA practice test, the full 1,000+ question bank and your readiness score — all on arboristtest.com.
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