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NG
Nathan Gibson
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
27 September 2024
Issue Date
Expiration Date
27 September 2029
Caitlyn Pollihan CEO & Executive Director
Nathan Gibson
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
September 27, 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
6 October 2023
Issue Date
Expiration Date
Certification Number
30 June 2025
Caitlyn Pollihan CEO & Executive Director
Nathan Gibson
WE-14124AU
ISA Certified Arborist Utility Specialist®
ISA Certified Arborist Utility Specialist®
October 6, 2023
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
28 June 2022
Issue Date
Expiration Date
Certification Number
30 June 2025
Caitlyn Pollihan CEO & Executive Director
Nathan Gibson
#0847 ISA Certified Arborist
WE-14124A
ISA Certified Arborist ®
ISA Certified Arborist ®
June 28, 2022
International Society of Arboriculture
