25.12.6
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Suggested Credentials
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Douglas Milton Hayduk
3 Credentials
1 Issuer
The International Society of Arboriculture
Hereby Announces That
Has Earned the Credential
ISA Certified Arborist Utility Specialist®
By successfully meeting ISA Certified Arborist Utility Specialist certification requirements through demonstrated attainment of relevant competencies as supported by the ISA Credentialing Council
23 July 2021
Issue Date
Expiration Date
Certification Number
30 June 2027
Caitlyn Pollihan CEO & Executive Director
Douglas Milton Hayduk
WE-13302AU
ISA Certified Arborist Utility Specialist®
ISA Certified Arborist Utility Specialist®
July 23, 2021
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
8 April 2021
Issue Date
Expiration Date
8 April 2026
Caitlyn Pollihan CEO & Executive Director
Douglas Milton Hayduk
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
April 8, 2021
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
27 January 2021
Issue Date
Expiration Date
Certification Number
30 June 2027
Caitlyn Pollihan CEO & Executive Director
Douglas Milton Hayduk
#0847 ISA Certified Arborist
WE-13302A
ISA Certified Arborist ®
ISA Certified Arborist ®
January 27, 2021
International Society of Arboriculture
