25.14.6
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CY
Christian Yesslith
1 Credential
1 Issuer
The International Society of Arboriculture
Hereby Announces That
Has Earned the Credential
ISA Certified Tree Climber
By successfully meeting ISA Certified Tree Climber certification requirements through demonstrated attainment of relevant competencies as supported by the ISA Credentialing Council
17 June 2025
Issue Date
Expiration Date
Certification Number
30 June 2028
Caitlyn Pollihan CEO & Executive Director
Christian Yesslith
UT-4808T
ISA Certified Tree Climber
ISA Certified Tree Climber
June 17, 2025
International Society of Arboriculture
