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Suggested Credentials
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Dillon Corson
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
17 November 2023
Issue Date
Expiration Date
17 November 2028
Caitlyn Pollihan CEO & Executive Director
Dillon Corson
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
November 17, 2023
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
21 October 2021
Issue Date
Expiration Date
Certification Number
31 December 2027
Caitlyn Pollihan CEO & Executive Director
Dillon Corson
#0847 ISA Certified Arborist
SO-10775A
ISA Certified Arborist ®
ISA Certified Arborist ®
October 21, 2021
International Society of Arboriculture
