25.13.6
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Patrick Plummer
5 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
31 October 2024
Issue Date
Expiration Date
Certification Number
31 December 2026
Caitlyn Pollihan CEO & Executive Director
Patrick Plummer
RM-7335BUM
ISA Certified Arborist Utility Specialist®
ISA Certified Arborist Utility Specialist®
October 31, 2024
International Society of Arboriculture
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
11 September 2023
Issue Date
Expiration Date
Certification Number
31 December 2026
Caitlyn Pollihan CEO & Executive Director
Patrick Plummer
RM-7335BM
ISA Board Certified Master Arborist®
ISA Board Certified Master Arborist®
September 11, 2023
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
4 June 2021
Issue Date
Expiration Date
4 June 2026
Caitlyn Pollihan CEO & Executive Director
Patrick Plummer
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
June 4, 2021
International Society of Arboriculture
The International Society of Arboriculture
Hereby Announces That
Has Earned the Credential
ISA Certified Urban Forest Professional
By successfully meeting ISA Certified Urban Forest Professional certification requirements through demonstrated attainment of relevant competencies as supported by the ISA Credentialing Council
29 March 2021
Issue Date
Expiration Date
Certification Number
30 June 2027
Caitlyn Pollihan CEO & Executive Director
Patrick Plummer
RM-7335AM
ISA Certified Urban Forest Professional
ISA Certified Urban Forest Professional
March 29, 2021
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 February 2010
Issue Date
Expiration Date
Certification Number
30 June 2024
Caitlyn Pollihan CEO & Executive Director
Patrick Plummer
#0847 ISA Certified Arborist
RM-7335A
ISA Certified Arborist ®
ISA Certified Arborist ®
February 11, 2010
International Society of Arboriculture
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Expired
Expired credential.
