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Our ISA Certifications: Certified Arborist and Tree Risk Assessment Qualified
Certification is how you tell a tree service that knows trees from one that only knows how to cut them. Here is what ours mean.
ISA Certified Arborist
The International Society of Arboriculture (ISA) certifies arborists around the world. The ISA Certified Arborist designation sets you apart as someone with the commitment, dedication and knowledge to succeed. The program is accredited by the ANSI National Accreditation Board (ANAB) for meeting or exceeding ISO 17024 standards for certification bodies.
For you, it means the person looking at your tree understands how trees grow, what stresses them, how to prune without causing harm and when a tree is truly a hazard.
ISA Tree Risk Assessment Qualification (TRAQ)
The ISA Tree Risk Assessment Qualification is a voluntary program that trains and assesses arborists in a specialized field: judging how likely a tree is to fail and what happens if it does. To earn it, candidates must complete a training course and pass both a comprehensive written assessment and a performance-based assessment. To keep it, they must retrain and retest every five years.
Qualified professionals:
- are proficient with the fundamentals of limited-visual and basic tree risk assessment, as defined in ISA’s Best Management Practices: Tree Risk Assessment;
- understand the principles of advanced diagnostic techniques for assessing tree risk;
- know how to gather and synthesize the information needed to assess tree risk; and
- can make reasoned judgments and recommendations for mitigating identified risk.
This is the qualification behind our arborist reports and tree risk assessments. In Salem, see arborist in Salem.
Licensed, bonded and insured
Oregon Woodsmen Tree Service is licensed with the Oregon Construction Contractors Board, CCB #194150, and is bonded and insured. Tree work is dangerous. If an unlicensed, uninsured crew damages your home or someone gets hurt on your property, the bill can land on you. Ask any tree service for their CCB number and look it up.
ISA Certified Arborist
- Held by
- Ryan Sims, owner, and Jimmy, supervisor
- Issued by
- International Society of Arboriculture
ISA Tree Risk Assessment Qualification
- Held by
- Ryan Sims, owner
- Renewal
- Retrain and retest every 5 years
Oregon contractor license
- CCB number
- 194150
- Status
- Licensed, bonded, insured
Verify an ISA credential at treesaregood.org and a contractor license at oregon.gov/ccb.
Certification questions
What is an ISA Certified Arborist?
A tree care professional who has at least three years of full time experience or a related degree, has passed the International Society of Arboriculture’s exam covering tree biology, pruning, safety, diagnosis and more, and keeps the credential current with continuing education.
What does Tree Risk Assessment Qualified mean?
The arborist completed ISA’s tree risk assessment course and passed both a written and a hands-on assessment. Holders must retrain and retest every five years.
Does every tree service have a certified arborist?
No. Anyone can buy a chainsaw. In Oregon a tree service must be licensed with the Construction Contractors Board, but arborist certification is voluntary.
How can I verify the certification?
Use the Find an Arborist and Verify a Credential tools on the ISA website, treesaregood.org, and search for the name shown on this page.
Have a certified arborist look at your trees
Call or text the office, or send the estimate form. Jennifer answers the phone Monday to Friday, 7 am to 6 pm.