25.12.4
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TS
Thomas Spengler
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
6 December 2024
Issue Date
Expiration Date
6 December 2029
Caitlyn Pollihan CEO & Executive Director
Thomas Spengler
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
December 6, 2024
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
15 March 2024
Issue Date
Expiration Date
Certification Number
30 June 2027
Caitlyn Pollihan CEO & Executive Director
Thomas Spengler
#0847 ISA Certified Arborist
RM-8849A
ISA Certified Arborist ®
ISA Certified Arborist ®
March 15, 2024
International Society of Arboriculture
