25.9.12
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Gordon Matassa
4 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 April 2023
Issue Date
Expiration Date
Certification Number
30 June 2026
Caitlyn Pollihan CEO & Executive Director
Gordon Matassa
WE-10328BM
ISA Board Certified Master Arborist®
ISA Board Certified Master Arborist®
April 20, 2023
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
12 June 2018
Issue Date
Expiration Date
Certification Number
30 June 2026
Caitlyn Pollihan CEO & Executive Director
Gordon Matassa
WE-10328AM
ISA Certified Urban Forest Professional
ISA Certified Urban Forest Professional
June 12, 2018
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
25 June 2014
Issue Date
Expiration Date
25 June 2029
Caitlyn Pollihan CEO & Executive Director
Gordon Matassa
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
June 25, 2014
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
6 March 2014
Issue Date
Expiration Date
Certification Number
30 June 2023
Caitlyn Pollihan CEO & Executive Director
Gordon Matassa
#0847 ISA Certified Arborist
WE-10328AM
ISA Certified Arborist ®
ISA Certified Arborist ®
March 6, 2014
International Society of Arboriculture
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Expired
Expired credential.
