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GR
Gary Robertson
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
16 July 2002
Issue Date
Expiration Date
Certification Number
31 December 2026
Caitlyn Pollihan CEO & Executive Director
Gary Robertson
#0847 ISA Certified Arborist
SO-2920A
ISA Certified Arborist ®
ISA Certified Arborist ®
July 16, 2002
International Society of Arboriculture
