25.9.15
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Nathaniel William Burns
2 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 August 2023
Issue Date
Expiration Date
Certification Number
31 December 2026
Caitlyn Pollihan CEO & Executive Director
Nathaniel William Burns
NY-5459B
ISA Board Certified Master Arborist®
ISA Board Certified Master Arborist®
August 11, 2023
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
19 April 2008
Issue Date
Expiration Date
Certification Number
30 June 2026
Caitlyn Pollihan CEO & Executive Director
Nathaniel William Burns
#0847 ISA Certified Arborist
NY-5459A
ISA Certified Arborist ®
ISA Certified Arborist ®
April 19, 2008
International Society of Arboriculture
