ISA Certification - What Does it Mean?

The International Society of Arboriculture's Arborist Certification program is a voluntary effort among professionals in the tree care industry to establish a meaningful standard of quality in arboricultural work, promote and encourage continuing education, and provide the public with a mechanism for identifying qualified arborists.

Learn More about ISA Certification

PNW-ISA Certification Exam Fees

We strive to hold as many as 20 exams through the Pacific Northwest each year.

As of October 1, 2008, the following exam fees are in effect. To receive member rates, you must be a member of both the ISA and the PNW-ISA. Non-Member rates are for those who hold membership in only one organization. Exam applications must be received the ISA office in Champaign, Illinois at least 12 days before the scheduled exam - no exceptions.

Exam Member Rate Non-Member Rate
Certified Tree Worker $115 $165
Certified Arborist $150 $250
Municipal/Utility Specialist
0-12 months $55 $185
13-24 months $75 $205
25-26 months $100 $230
Board Certified Master Arborist $350 $550
* 1st Exam Retake Free Free
* 2nd Exam Retake $75 $75