25.13.24
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GP
Gaston Porterie
3 Credentials
2 Issuers
ISA Credential Certification ID PN-1105A, Expires 30 June 2027
March 19, 2024
ISA
Unverified
Unverified credential.
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
22 November 2013
Issue Date
Expiration Date
23 October 2029
Caitlyn Pollihan CEO & Executive Director
Mr. Gaston Porterie
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
November 22, 2013
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
21 June 1997
Issue Date
Expiration Date
Certification Number
30 June 2027
Caitlyn Pollihan CEO & Executive Director
Gaston Porterie
#0847 ISA Certified Arborist
PN-1105A
ISA Certified Arborist ®
ISA Certified Arborist ®
June 21, 1997
International Society of Arboriculture
