25.13.10
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JJ
Jonathan J. Maystrik
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
1 February 2013
Issue Date
Expiration Date
31 October 2025
Caitlyn Pollihan CEO & Executive Director
Jonathan J. Maystrik
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
February 1, 2013
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
10 September 2005
Issue Date
Expiration Date
Certification Number
31 December 2026
Caitlyn Pollihan CEO & Executive Director
Jonathan J. Maystrik
#0847 ISA Certified Arborist
WE-7363A
ISA Certified Arborist ®
ISA Certified Arborist ®
September 10, 2005
International Society of Arboriculture
