25.9.2
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Suggested Credentials
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GS
Guillaume Sainte-Marie
3 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
11 April 2025
Issue Date
Expiration Date
Certification Number
30 June 2028
Caitlyn Pollihan CEO & Executive Director
Guillaume Sainte-Marie
QU-0192B
ISA Board Certified Master Arborist®
ISA Board Certified Master Arborist®
April 11, 2025
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 March 2017
Issue Date
Expiration Date
Certification Number
30 June 2026
Caitlyn Pollihan CEO & Executive Director
Guillaume Sainte-Marie
#0847 ISA Certified Arborist
QU-0192A
ISA Certified Arborist ®
ISA Certified Arborist ®
March 21, 2017
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
13 May 2016
Issue Date
Expiration Date
31 December 2026
Caitlyn Pollihan CEO & Executive Director
Guillaume Sainte-Marie
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
May 13, 2016
International Society of Arboriculture
