25.12.6
This website uses cookies to ensure you get the best experience on our website.
Learn more
Got it!
Skip to main content
Suggested Credentials
Sign in
WP
William Park
2 Credentials
1 Issuer
The International Society of Arboriculture
Hereby Announces That
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
31 May 2024
Issue Date
Expiration Date
31 May 2029
Caitlyn Pollihan CEO & Executive Director
William Park
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
May 31, 2024
International Society of Arboriculture
The International Society of Arboriculture
Hereby Announces That
Has Earned the Credential
ISA Certified Arborist ®
By successfully meeting ISA Certified Arborist certification requirements through demonstrated attainment of relevant competencies as supported by the ISA Credentialing Council
11 April 2023
Issue Date
Expiration Date
Certification Number
30 June 2026
Caitlyn Pollihan CEO & Executive Director
William Park
#0847 ISA Certified Arborist
GO-0053A
ISA Certified Arborist ®
ISA Certified Arborist ®
April 11, 2023
International Society of Arboriculture
