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Suggested Credentials
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Robert Guevara
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
19 November 2022
Issue Date
Expiration Date
Certification Number
30 June 2026
Caitlyn Pollihan CEO & Executive Director
Robert Guevara
NJ-1278AU
ISA Certified Arborist Utility Specialist®
ISA Certified Arborist Utility Specialist®
November 19, 2022
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
20 November 2020
Issue Date
Expiration Date
20 November 2025
Caitlyn Pollihan CEO & Executive Director
Robert Guevara
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
November 20, 2020
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
26 February 2020
Issue Date
Expiration Date
Certification Number
30 June 2026
Caitlyn Pollihan CEO & Executive Director
Robert Guevara
#0847 ISA Certified Arborist
NJ-1278A
ISA Certified Arborist ®
ISA Certified Arborist ®
February 26, 2020
International Society of Arboriculture
