25.14.29
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HY
Han Yan
2 Credentials
1 Issuer
The International Society of Arboriculture
Hereby Announces That
Han Yan
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
Caitlyn Pollihan CEO & Executive Director
20 June 2030
20 June 2025
Expiration Date
Issue Date
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
June 20, 2025
International Society of Arboriculture
The International Society of Arboriculture
Hereby Announces That
Han Yan
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
Caitlyn Pollihan CEO & Executive Director
30 June 2027
25 May 2024
PR-5684A
Expiration Date
Certification Number
Issue Date
#0847 ISA Certified Arborist
ISA Certified Arborist ®
ISA Certified Arborist ®
May 25, 2024
International Society of Arboriculture
