25.13.16
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AG
Adan Gonzalez
4 Credentials
1 Issuer
The International Society of Arboriculture
Hereby Announces That
Has Earned the Credential
ISA Certified Tree Climber
By successfully meeting ISA Certified Tree Climber certification requirements through demonstrated attainment of relevant competencies as supported by the ISA Credentialing Council
9 September 2023
Issue Date
Expiration Date
Certification Number
31 December 2026
Caitlyn Pollihan CEO & Executive Director
Adan Gonzalez
WE-12855AUT
ISA Certified Tree Climber
ISA Certified Tree Climber
September 9, 2023
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
24 April 2023
Issue Date
Expiration Date
Certification Number
31 December 2025
Caitlyn Pollihan CEO & Executive Director
Adan Gonzalez
WE-12855AU
ISA Certified Arborist Utility Specialist®
ISA Certified Arborist Utility Specialist®
April 24, 2023
International Society of Arboriculture
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
16 September 2021
Issue Date
Expiration Date
16 September 2026
Caitlyn Pollihan CEO & Executive Director
Adan Gonzalez
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
September 16, 2021
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
21 November 2019
Issue Date
Expiration Date
Certification Number
31 December 2025
Caitlyn Pollihan CEO & Executive Director
Adan Gonzalez
#0847 ISA Certified Arborist
WE-12855A
ISA Certified Arborist ®
ISA Certified Arborist ®
November 21, 2019
International Society of Arboriculture
