25.10.0
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CW
Christopher Walker
1 Credential
1 Issuer
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
9 February 2004
Issue Date
Expiration Date
Certification Number
31 December 2026
Caitlyn Pollihan CEO & Executive Director
Christopher Walker
#0847 ISA Certified Arborist
OH-5138A
ISA Certified Arborist ®
ISA Certified Arborist ®
February 9, 2004
International Society of Arboriculture
