25.10.19
This website uses cookies to ensure you get the best experience on our website.
Learn more
Got it!
Skip to main content
Suggested Credentials
Sign in
PJ
Paul Johnson
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 July 2013
Issue Date
Expiration Date
1 May 2028
Caitlyn Pollihan CEO & Executive Director
Paul Johnson
ISA Tree Risk Assessment Qualification®
ISA Tree Risk Assessment Qualification®
July 12, 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
1 August 2011
Issue Date
Expiration Date
Certification Number
31 December 2026
Caitlyn Pollihan CEO & Executive Director
Paul Johnson
MW-0495BM
ISA Board Certified Master Arborist®
ISA Board Certified Master Arborist®
August 1, 2011
International Society of Arboriculture
The International Society of Arboriculture
Hereby Announces That
Has Earned the Credential
ISA Certified Urban Forest Professional
By successfully meeting ISA Certified Urban Forest Professional certification requirements through demonstrated attainment of relevant competencies as supported by the ISA Credentialing Council
18 April 2008
Issue Date
Expiration Date
Certification Number
31 December 2026
Caitlyn Pollihan CEO & Executive Director
Paul Johnson
MW-0495BM
ISA Certified Urban Forest Professional
ISA Certified Urban Forest Professional
April 18, 2008
International Society of Arboriculture
