- The International Society of ArboricultureHereby Announces ThatRicardo SanchezHas Earned the CredentialISA Certified Arborist ®By successfully meeting ISA Certified Arborist certification requirements through demonstrated attainment of relevant competencies as supported by the ISA Credentialing CouncilCaitlyn Pollihan CEO & Executive Director31 December 202510 November 2022SW-0057AExpiration DateCertification NumberIssue Date#0847 ISA Certified Arborist

The International Society of Arboriculture
Hereby Announces That
Ricardo Sanchez
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

Caitlyn Pollihan
CEO & Executive Director
31 December 2025
10 November 2022
SW-0057A
Expiration Date
Certification Number
Issue Date

#0847
ISA Certified Arborist
Ricardo Sanchez
ISA Certification is a voluntary program that tests and certifies a professional’s achievement of a standard level of knowledge and skill in the field of arboriculture. When a professional becomes an ISA Certified Arborist, they should be recognized by their peers and the public as a tree care professional who has attained a generally-accepted level of knowledge in areas such as tree biology, diagnosis, maintenance practices, safety, and other subject and practice areas within the tree care profession as identified through periodic job task analyses.
Skills / Knowledge
- tree maintenance
- tree pruning
- pruning
- tree care
- tree diagnosis
- tree planting
- arboriculture
- tree management
- tree inspection
Issued on
November 10, 2022
Expires on
December 31, 2025
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