25.12.5
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RV
Ruurd van de Ven
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
1 February 2013
Issue Date
Expiration Date
23 March 2028
Caitlyn Pollihan CEO & Executive Director
Ruurd van de Ven
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 Board Certified Master Arborist®
By successfully meeting ISA Board Certified Master Arborist certification requirements through demonstrated attainment of relevant competencies as supported by the ISA Credentialing Council
16 February 2005
Issue Date
Expiration Date
Certification Number
30 June 2023
Caitlyn Pollihan CEO & Executive Director
Ruurd van de Ven
ON-0222B
ISA Board Certified Master Arborist®
ISA Board Certified Master Arborist®
February 16, 2005
International Society of Arboriculture
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Expired
Expired credential.
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
16 February 2005
Issue Date
Expiration Date
Certification Number
30 June 2026
Caitlyn Pollihan CEO & Executive Director
Ruurd van de Ven
#0847 ISA Certified Arborist
ON-0222A
ISA Certified Arborist ®
ISA Certified Arborist ®
February 16, 2005
International Society of Arboriculture
