25.9.2
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Suggested Credentials
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WZ
William Zurcher
3 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
8 August 2024
Issue Date
Expiration Date
8 August 2029
Caitlyn Pollihan CEO & Executive Director
William Zurcher
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
August 8, 2024
International Society of Arboriculture
The International Society of Arboriculture
Hereby Announces That
Has Earned the Credential
ISA Certified Arborist Utility Specialist®
By successfully meeting ISA Certified Arborist Utility Specialist certification requirements through demonstrated attainment of relevant competencies as supported by the ISA Credentialing Council
9 August 2022
Issue Date
Expiration Date
Certification Number
31 December 2027
Caitlyn Pollihan CEO & Executive Director
William Zurcher
IN-3658AU
ISA Certified Arborist Utility Specialist®
ISA Certified Arborist Utility Specialist®
August 9, 2022
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
29 October 2021
Issue Date
Expiration Date
Certification Number
31 December 2027
Caitlyn Pollihan CEO & Executive Director
William Zurcher
#0847 ISA Certified Arborist
IN-3658A
ISA Certified Arborist ®
ISA Certified Arborist ®
October 29, 2021
International Society of Arboriculture
