top of page

ISA Certified Arborist Practice Test

400 Questions that simulates the topics & difficulty of the actual exam

Take Your Arboriculture Profession to the Next Level

"This book covered the exact topics that were on the exam. I was certain I was going to pass and did!" - Julie K.

NMLS Guide Options
Arborist Guides




Outline of all ISA Arborist Topics in the Exam

1 Full ISA Certification Practice Exam

(200 Questions with Detailed Answers)

Detailed Answers to Each Test Question


Book 2.jpg

Outline of all ISA Arborist Topics in the Exam

2 Full ISA Certification Practice Exam

(400 Questions with Detailed Answers)

Detailed Answers to Each Test Question


Hardcopy Options Takes You to Amazon

Be as prepared as possible for the ISA Arborist Certification exam with any of our Study Guides.


You'll practice with 400 ISA Arborist Certification Questions (two entire exams worth). Along with each question is a detailed explanation of the correct answer!

To maximize your preparation, we've proportionally divided the questions as they appear on the exam. This allows you to accurately test your knowledge within the time frame of the exam.

A brighter future is within reach. Get your guide by Bova Books today.

  Found Inside:  ISA Arborist Example Questions

ISA Arborist Sample Questons

Question 1

The ideal soil ratio for solids to pore space is:

(A). 20:80

(B). 35:65

(C). 40:60

(D). 50:50



An even split between the amount of solids and the amount of pore space is the ideal condition.

Question 1

(Hover Mouse to Reveal)


If possible healthy, older fonds should not be removed. If they must be, fonds that are at an angle of less than 90° perpendicular to the stem shall not be removed.

Question 2

(Hover Mouse to Reveal)


Lion tailing occurs when too many inner laterals are removed and there's no longer an appropriate distribution. This can lead to bark sunburn, breakage, and waterspouts

Question 3

(Hover Mouse to Reveal)



Water that moves between cells of different ages is called radial transport.

Question 4

(Hover Mouse to Reveal)

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.

Eligibility Requirements

In order to apply to for the exam, applicants must either...


  • have at least three years of full-time experience in arboriculture

  • 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 

    • Please note: Using multiple degrees to fulfill degree requirements is not acceptable.


Arborist Exam Breakdown

The exam is divided into ten areas of expertise (listed below).

  • Pruning (16%)

  • Safe Work Practices (15%)

  • Tree Risk Management (13%)

  • Diagnosis and Treatment (12%)

  • Soil Management (12%)

  • Identification and Selection (8%)

  • Tree Biology (8%)

  • Urban Forestry (7%)

  • Installment and Establishment (5%)

  • Tree Protection (4%)

These ten sections will total 200 multiple-choice questions in the end. However, 20 of these questions will not count towards the final score.

More About the ISA Exam

Guide Options




Follow us for study tips, daily inspirational quotes, and the motivation you need to take the next step in your career! 

Contact Form

Thanks for submitting!

bottom of page