25.9.2
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Suggested Credentials
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ES
Eric St John Christianson
3 Credentials
1 Issuer
The International Society of Arboriculture
Hereby Announces That
Has Earned the Credential
ISA Certified Arborist Utility Specialist®
By successfully meeting ISA Certified Arborist Utility Specialist certification requirements through demonstrated attainment of relevant competencies as supported by the ISA Credentialing Council
27 April 2024
Issue Date
Expiration Date
Certification Number
30 June 2027
Caitlyn Pollihan CEO & Executive Director
Eric St John Christianson
WE-13407AU
ISA Certified Arborist Utility Specialist®
ISA Certified Arborist Utility Specialist®
April 27, 2024
International Society of Arboriculture
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
10 November 2021
Issue Date
Expiration Date
10 November 2026
Caitlyn Pollihan CEO & Executive Director
Eric St John Christianson
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
November 10, 2021
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
18 March 2021
Issue Date
Expiration Date
Certification Number
30 June 2027
Caitlyn Pollihan CEO & Executive Director
Eric St John Christianson
#0847 ISA Certified Arborist
WE-13407A
ISA Certified Arborist ®
ISA Certified Arborist ®
March 18, 2021
International Society of Arboriculture
