ISA Certified Arborist

About

The ISA Certified Arborist credential is issued by the International Society of Arboriculture. It is an international credential, and many people earn it and use it right here in Canada. It covers the science and practice of tree care, including tree biology, soil, pruning, safety, tree risk and the protection of trees on work sites.

No law in Canada requires you to hold this credential to work with trees. Still, it is widely respected. Holding it can help you stand out when applying for jobs as an arborist or an urban forester. It can also give clients, municipalities and employers more confidence in your skills.

How to get it

1. Build your experience
   You need hands-on work in tree care before you can apply. This can come from a job with a tree care company, a municipal crew or a similar employer. Time spent in a related college or university program may also count toward the experience requirement.
2. Check the current requirements
   Review the application rules from the International Society of Arboriculture to confirm what experience and education they accept. Rules can change, so always use the latest information from the issuer.
3. Apply and get approved
   Send in your application along with proof of your work experience or education. Once it is approved, you can book your exam.
4. Study for the exam
   Plan for a few months of regular study. Use the study guide recommended by the issuer, take practice questions and review the topics where you feel least sure. Many people also find it helpful to study with coworkers or take a prep course.
5. Write the exam
   Take the written exam at an approved testing location. Bring the identification you are asked for and arrive early.
6. Receive your credential
   After you pass, you become an ISA Certified Arborist. You can then use the title on your resume, business cards and job applications.

The exam

The exam is a written, multiple-choice test. It covers the main areas of arboriculture, such as tree biology, identification, soil and water, pruning, tree health, safety and risk. Questions test both your knowledge and how you would apply it on the job. If you do not pass on your first try, you can usually retake the exam after paying the exam fee again.

Careers that mention it

Keeping it

The credential does not last forever. To keep it, you must renew it on a regular schedule. Renewal is done by earning continuing education credits through courses, workshops, conferences and similar learning, and by paying a renewal fee. Keep records of your learning so renewal goes smoothly. If you let the credential expire, you may have to take extra steps to get it back.