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Suggested Credentials
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EK
Erik Koski
2 Credentials
1 Issuer
The International Society of Arboriculture
Hereby Announces That
Has Earned the Credential
ISA Tree Risk Assessment Qualification®
By successfully meeting ISA Tree Risk Assessment Qualification requirements through demonstrated attainment of relevant competencies as supported by the ISA Credentialing Council
13 February 2025
Issue Date
Expiration Date
13 February 2030
Caitlyn Pollihan CEO & Executive Director
Erik Koski
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
February 13, 2025
International Society of Arboriculture
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
8 January 2025
Issue Date
Expiration Date
Certification Number
30 June 2028
Caitlyn Pollihan CEO & Executive Director
Erik Koski
#0847 ISA Certified Arborist
WE-15693A
ISA Certified Arborist ®
ISA Certified Arborist ®
January 8, 2025
International Society of Arboriculture
