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Glossary term

What is Certified arborist?

Short answer

Certified arborist is a tree care professional who has passed an exam and holds a credential from the ISA, the International Society of Arboriculture.

Certified arborist, explained for tree service owners

A certified arborist has passed a test on tree biology, pruning and safe work practices, and holds a credential from the ISA, the International Society of Arboriculture. For a tree service owner, a certified arborist on staff can make a strong point on your website and in estimates, but only if it is true. List the names and credentials of the people who actually hold them, check that each one is current with the ISA, and never imply that a crew member is certified when they are not. Honest credentials build trust with homeowners.

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