25.13.6
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Orion N. Stahlbaum
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
27 January 2023
Issue Date
Expiration Date
27 January 2028
Caitlyn Pollihan CEO & Executive Director
Orion N. Stahlbaum
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
January 27, 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
11 April 2012
Issue Date
Expiration Date
Certification Number
30 June 2026
Caitlyn Pollihan CEO & Executive Director
Orion N. Stahlbaum
#0847 ISA Certified Arborist
TX-3904A
ISA Certified Arborist ®
ISA Certified Arborist ®
April 11, 2012
International Society of Arboriculture
