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RS
Ryan Sahs
2 Credentials
1 Issuer
The International Society of Arboriculture
Hereby Announces That
Ryan Sahs
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
Caitlyn Pollihan CEO & Executive Director
9 December 2026
9 December 2021
Expiration Date
Issue Date
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
December 9, 2021
International Society of Arboriculture
The International Society of Arboriculture
Hereby Announces That
Ryan Sahs
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
Caitlyn Pollihan CEO & Executive Director
30 June 2025
21 March 2019
WI-1344A
Expiration Date
Certification Number
Issue Date
#0847 ISA Certified Arborist
ISA Certified Arborist ®
ISA Certified Arborist ®
March 21, 2019
International Society of Arboriculture
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Expired
Expired credential.
