25.12.4
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Suggested Credentials
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WB
William Butler
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
11 February 2013
Issue Date
Expiration Date
16 December 2027
Caitlyn Pollihan CEO & Executive Director
William Butler
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
February 11, 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
18 March 2009
Issue Date
Expiration Date
Certification Number
30 June 2027
Caitlyn Pollihan CEO & Executive Director
William Butler
#0847 ISA Certified Arborist
WE-8774A
ISA Certified Arborist ®
ISA Certified Arborist ®
March 18, 2009
International Society of Arboriculture
