25.12.11
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John S Johnson
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
14 August 2023
Issue Date
Expiration Date
Certification Number
31 December 2026
Caitlyn Pollihan CEO & Executive Director
John S Johnson
#0847 ISA Certified Arborist
RM-8742A
ISA Certified Arborist ®
ISA Certified Arborist ®
August 14, 2023
International Society of Arboriculture
