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Suggested Credentials
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LJ
Leonard Jagelski
3 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
12 December 2024
Issue Date
Expiration Date
12 December 2029
Caitlyn Pollihan CEO & Executive Director
Leonard Jagelski
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
December 12, 2024
International Society of Arboriculture
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
3 May 2021
Issue Date
Expiration Date
Certification Number
30 June 2026
Caitlyn Pollihan CEO & Executive Director
Leonard Jagelski
WE-13035AU
ISA Certified Arborist Utility Specialist®
ISA Certified Arborist Utility Specialist®
May 3, 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
29 June 2020
Issue Date
Expiration Date
Certification Number
30 June 2026
Caitlyn Pollihan CEO & Executive Director
Leonard Jagelski
#0847 ISA Certified Arborist
WE-13035A
ISA Certified Arborist ®
ISA Certified Arborist ®
June 29, 2020
International Society of Arboriculture
