What the Qualification Is
The ISA Tree Risk Assessment Qualification (TRAQ) is what the International Society of Arboriculture calls "a voluntary qualification program designed to train and assess candidates in a specialized field of arboriculture." In plain terms, it is the industry's standardized method for answering a question every property owner eventually asks: is this tree dangerous?
The value of a standard is that it replaces opinion with method. Two TRAQ-qualified assessors looking at the same tree work through the same framework and arrive at conclusions that can be compared, challenged, and defended. That is precisely what an insurer, a permit reviewer, or a court needs.
What It Takes to Earn It
TRAQ is not open to anyone. The ISA requires candidates to already hold a qualifying credential — ISA Certified Arborist, ISA Board Certified Master Arborist, ISA Certified Urban Forest Professional, ISA Certified Arborist Utility Specialist, or ISA Certified Tree Climber — or to qualify through a degree in arboriculture, urban forestry, forestry or horticulture, a national arboriculture certification, or state licensing.
The program itself is a two-day educational course followed by a half-day of assessments that include both written and performance-based components. The performance half matters: a candidate has to demonstrate the assessment on an actual tree, not just describe it on paper.
It also expires. TRAQ holders must retrain and retest every seven years to keep the qualification current, so it reflects present-day practice rather than a course someone took a decade ago.
What a Risk Assessment Covers
The ISA describes a TRAQ-qualified professional as proficient in limited-visual and basic tree risk assessment, familiar with advanced diagnostic techniques, and able to gather and synthesize risk-assessment information and recommend mitigation. Read that last part carefully, because it is the part people miss: the output is not a verdict of "dangerous" or "fine." It is a set of options.
Risk is a combination of how likely a part of the tree is to fail, how likely it is to strike something if it does, and how bad that consequence would be. A large dead limb over a parking lot and the same limb over an empty conservation lot are the same defect and very different risks. That framing is why a good assessment frequently ends in prune this, cable that, move the picnic table rather than remove it.
When You Want It in Writing
Get a documented assessment when a tree is near a structure, walkway, playground, or road; after any storm that stressed a mature tree; when an insurer or HOA board asks for justification; when a buyer, seller or lender needs to know what a tree on the property represents; and when Florida's dangerous-tree provisions are in play — those require documentation from a qualified professional, which is exactly what this qualification produces. See our Brevard County tree removal permit guide for how that interacts with local rules.
Services This Qualification Leads
TRAQ is the backbone of our hazardous tree assessment service, and it informs consulting arborist reports, tree inventories, HOA tree programs, and the documentation we produce after storm damage. Before hurricane season, pair it with our hurricane tree prep guide.
TRAQ — Frequently Asked Questions
What does a TRAQ tree risk assessment include?
A qualified assessor evaluates the tree and its target zone: species and structure, visible defects, decay indicators, root condition, lean and load, site history, and what would be struck if a part failed. The result is a written assessment of failure likelihood, impact likelihood and consequence, plus mitigation options ranging from pruning, cabling or target removal to full removal. You receive documentation you can hand to an insurer, a board or a permit office.
How often does TRAQ have to be renewed?
The International Society of Arboriculture requires TRAQ holders to retrain and retest every seven years. That renewal cycle is a meaningful part of the credential's value, because the assessment methodology and the research behind it continue to change.
Will a tree risk assessment always recommend removal?
No, and an assessor whose reports always end in removal should worry you. Risk is a function of failure likelihood, the chance of striking a target, and the severity of that consequence. Many assessments conclude that pruning to reduce end weight, installing a cable or brace, or moving what sits under the tree lowers risk to an acceptable level. Removal is one option among several.
Does an insurance company require a certified assessment?
Insurers and claims adjusters increasingly ask for documented, qualified assessment before paying a tree-related claim or accepting a property's risk profile, and they treat a standardized TRAQ assessment very differently from a contractor's verbal opinion. If you anticipate a claim, get the assessment in writing before the work is done, not after.
Credential requirements on this page are drawn from the International Society of Arboriculture's own published program information: International Society of Arboriculture — ISA Tree Risk Assessment Qualification. Verified 1 September 2026.