25.13.6
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Suggested Credentials
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Eugene F. Barrientos
5 Credentials
1 Issuer
The International Society of Arboriculture
Hereby Announces That
Has Earned the Credential
ISA Board Certified Master Arborist®
By successfully meeting ISA Board Certified Master Arborist certification requirements through demonstrated attainment of relevant competencies as supported by the ISA Credentialing Council
20 September 2024
Issue Date
Expiration Date
Certification Number
31 December 2027
Caitlyn Pollihan CEO & Executive Director
Eugene F. Barrientos
WE-8701BUT
ISA Board Certified Master Arborist®
ISA Board Certified Master Arborist®
September 20, 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
30 April 2021
Issue Date
Expiration Date
30 April 2026
Caitlyn Pollihan CEO & Executive Director
Eugene F. Barrientos
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
April 30, 2021
International Society of Arboriculture
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 September 2009
Issue Date
Expiration Date
Certification Number
30 June 2027
Caitlyn Pollihan CEO & Executive Director
Eugene F. Barrientos
WE-8701AUT
ISA Certified Arborist Utility Specialist®
ISA Certified Arborist Utility Specialist®
September 19, 2009
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
14 February 2009
Issue Date
Expiration Date
Certification Number
30 June 2027
Caitlyn Pollihan CEO & Executive Director
Eugene F. Barrientos
#0847 ISA Certified Arborist
WE-8701AUT
ISA Certified Arborist ®
ISA Certified Arborist ®
February 14, 2009
International Society of Arboriculture
The International Society of Arboriculture
Hereby Announces That
Has Earned the Credential
ISA Certified Tree Climber
By successfully meeting ISA Certified Tree Climber certification requirements through demonstrated attainment of relevant competencies as supported by the ISA Credentialing Council
18 November 2006
Issue Date
Expiration Date
Certification Number
31 December 2027
Caitlyn Pollihan CEO & Executive Director
Eugene F. Barrientos
WE-8701AUT
ISA Certified Tree Climber
ISA Certified Tree Climber
November 18, 2006
International Society of Arboriculture
