25.9.12
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Nicholas Robert Kilburg
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
28 February 2025
Issue Date
Expiration Date
28 February 2030
Caitlyn Pollihan CEO & Executive Director
Nicholas Robert Kilburg
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
February 28, 2025
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 August 2023
Issue Date
Expiration Date
Certification Number
31 December 2026
Caitlyn Pollihan CEO & Executive Director
Nicholas Robert Kilburg
#0847 ISA Certified Arborist
GO-0079A
ISA Certified Arborist ®
ISA Certified Arborist ®
August 21, 2023
International Society of Arboriculture
