Free ISA CA Exam Prep
ISA Certified Arborist
Pass your ISA CA exam without spending hundreds on expensive prep courses. Free study guides, practice questions, flashcards, and related exam resources.
Quick Facts
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Online course on MometrixCERTIFIED ISA Certified Arborist License: Complete Roadmap
Follow this path to maximize your chances of passing on the first try
Core Biology and IdentificationYou are here
Build fundamentals in tree biology, species ID, and selection.
Soils, Installation, and Establishment
Master planting, establishment, and soil management decisions.
Pruning, Diagnosis, and Tree Risk
Focus on the highest-weight practical decision domains.
Safety, Construction, and Urban Forestry
Close gaps in safe work, preservation during construction, and urban forestry.
Timed 200-Question Practice
Simulate the 3.5-hour exam and improve weak domains before scheduling.
Can You Take the ISA CA Exam?
Check if you meet the basic eligibility requirements
- •Submit complete application and fees before the exam window.
- •Provide documentation for education and/or work experience when requested.
- •Agree to ISA Code of Ethics and credentialing policies.
ISA CA Quick Facts
Time to Get Licensed
6-10 weeks for most candidates
From start to license in hand
Exam Provider
Pearson VUE (CBT and OnVUE) plus ISA partner paper-based administrations
Retake Policy
Candidates who do not pass may retake the exam 30 days after the most recent attempt; a $120 retake fee applies for each retake attempt.
Total Cost Breakdown
Free ISA CA Prep That Actually Works
The official pass rate is ISA does not publish aggregate pass rates for this credential.. Our students do better.
199 Practice Questions
Practice every ISA exam domain with arboriculture-focused explanations.
AI-Powered Learning
Get instant guidance on pruning, risk, diagnosis, and safety topics.
2026 Updated
Aligned to the current ISA Certified Arborist content outline and scoring rules.
Free Access
Start studying free before paying any exam provider fees.
What You'll Study
12 chapters covering everything you need to pass
Orientation: ISA Certified Arborist Eligibility, Fees, Format, Scoring, and Recertification
6 sections
Current 2022 JTA Outline, Domain Weights, and Exam Strategy
6 sections
Tree Biology: Anatomy, Physiology, Water Movement, CODIT, and Growth Response
6 sections
Tree Identification and Selection: Morphology, Nomenclature, Site Fit, and Species Risk
6 sections
Soil Management: Physical, Chemical, Biological, Water, Nutrition, and Urban Soils
6 sections
Installation and Establishment: Planting, Transplanting, Mulch, Water, Anchoring, and Aftercare
6 sections
Pruning: Objectives, Standards, Cuts, Young/Mature Trees, and Response
6 sections
Diagnosis and Treatment: Signs, Symptoms, Biotic/Abiotic Factors, IPM, and Treatment Plans
6 sections
Trees and Construction: Preservation, Root Zones, Impact Prediction, and Recovery
6 sections
Tree Risk: Assessment Levels, Targets, Defects, and Mitigation
6 sections
Safe Work Practices: Z133, Electrical Hazards, PPE, Tools, Work Zone, and Emergency Planning
6 sections
Urban Forestry and Final Review: Test Day, Results, CEUs, and Next Credentials
6 sections
ISA CA Exam Details
ISA Certified Arborist
Administered by International Society of Arboriculture (ISA)
Exam Content Breakdown
Based on the official International Society of Arboriculture (ISA) content outline
Tree structure, growth, physiology, and biological fundamentals.
Species identification, selection, and landscape suitability.
Soil properties, amendments, and root-zone management.
Planting practices and establishment care for healthy trees.
Pruning objectives, methods, and standards for tree health and safety.
Pest/disease diagnosis and treatment planning.
Tree protection and preservation during construction activity.
Risk assessment principles and mitigation options.
Safety procedures, hazard controls, and worksite risk reduction.
Urban forestry concepts, planning, and community management.
What's Included
12 Chapters
Complete exam coverage
Practice Quizzes
With detailed explanations
Free to Start
No credit card required
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What's Next After the ISA CA?
After passing the ISA CA, you can pursue these career paths
ISA Tree Risk Assessment Qualification
Specialize in advanced tree risk assessment methods.
ISA Utility Specialist
Advance into utility vegetation management and electric utility pruning.
ISA Board Certified Master Arborist
Pursue ISA's highest arboriculture credential.
ISA CA Exam FAQ
Official International Society of Arboriculture (ISA) Resources
Verify information with these official sources
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