25.6.13
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GW
Greg Wickenhauser
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
20 January 2024
Issue Date
Expiration Date
Certification Number
30 June 2027
Caitlyn Pollihan CEO & Executive Director
Greg Wickenhauser
#0847 ISA Certified Arborist
MN-5039A
ISA Certified Arborist ®
ISA Certified Arborist ®
January 20, 2024
International Society of Arboriculture
