25.9.12
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Suggested Credentials
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IH
Irvin Higashi
2 Credentials
1 Issuer
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
18 December 2020
Issue Date
Expiration Date
18 December 2025
Caitlyn Pollihan CEO & Executive Director
Irvin Higashi
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
December 18, 2020
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
17 April 2010
Issue Date
Expiration Date
Certification Number
30 June 2025
Caitlyn Pollihan CEO & Executive Director
Irvin Higashi
#0847 ISA Certified Arborist
WE-9185A
ISA Certified Arborist ®
ISA Certified Arborist ®
April 17, 2010
International Society of Arboriculture
