25.8.20
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GT
Greg Treadwell
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
21 June 2016
Issue Date
Expiration Date
Certification Number
30 June 2025
Caitlyn Pollihan CEO & Executive Director
Greg Treadwell
#0847 ISA Certified Arborist
TX-4257A
ISA Certified Arborist ®
ISA Certified Arborist ®
June 21, 2016
International Society of Arboriculture
