25.8.14
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DC
David C. Nilsen
1 Credential
1 Issuer
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
13 July 2018
Issue Date
Expiration Date
Certification Number
31 December 2024
Caitlyn Pollihan CEO & Executive Director
David C. Nilsen
#0847 ISA Certified Arborist
OH-6744A
ISA Certified Arborist ®
ISA Certified Arborist ®
July 13, 2018
International Society of Arboriculture
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Expired
Expired credential.
