- The International Society of ArboricultureHereby Announces ThatPatrick TierneyHas Earned the CredentialISA Tree Risk Assessment Qualification®By successfully meeting ISA Tree Risk Assessment Qualification requirements through demonstrated attainment of relevant competencies as supported by the ISA Credentialing CouncilCaitlyn Pollihan CEO & Executive Director21 September 202821 September 2023Expiration DateIssue Date

The International Society of Arboriculture
Hereby Announces That
Patrick Tierney
Has Earned the Credential
ISA Tree Risk Assessment Qualification®
By successfully meeting ISA Tree Risk Assessment Qualification requirements through demonstrated attainment of relevant competencies as supported by the ISA Credentialing Council

Caitlyn Pollihan
CEO & Executive Director
21 September 2028
21 September 2023
Expiration Date
Issue Date
Patrick Tierney
The ISA TRAQ program is voluntary and developed to train and assess an individual’s degree of knowledge and skill in a specialized field of arboriculture. When a professional earns the ISA TRAQ credential, they should be recognized by their peers and the public as a tree care professional who has specialized knowledge and skills in tree risk assessment. To earn the qualification, applicants must meet eligibility requirements, complete a training course, and pass both a comprehensive written assessment and a performance-based assessment. To maintain the qualification, current credential holders must retrain and retest every five years.
Skills / Knowledge
- arboriculture
- tree risk assessment
- consulting arborist
- community tree assessment
- urban tree assessment
- tree risk mitigation
Issued on
September 21, 2023
Expires on
September 21, 2028
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