Tree Appraisal and the Principle of Substitution

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on Wednesday, June 19, 2024
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2024 Multi-Chapter Webinar Series
Held in Cooperation with ISA Michigan
Webinar Time: 9am - 10am (PST)

One of the foundational concepts in tree appraisal is the Principal of Substitution. A thing cannot appraise for more than a substitute of equivalent utility. Possibly the hardest step in applying this principal is selecting a “functional equivalent” to the subject tree or trees. When selecting the best appraisal technique, an appraiser must ask: “Is there a way the benefits provided by this tree could be replaced at a lower cost?” Depending on the facts of a case, the answer could be very different. This presentation reviews 10 court cases that applied the Principle of Substitution to tree appraisal.

Registration Fee:
Member Rate: $25.00
Non Member Rate: $40.00
Registration Closes 6/14/2024

Your personal Zoom link to access the webinar will be emailed by Monday, June 17, 2024. You WILL NOT receive the link at the time of registration.

Instructor: James Komen,
Class One Arboriculture, is a consulting arborist in California specializing in risk assessment and tree appraisal. He helps clients make informed management decisions for individual trees and for tree inventories. His work has been published in Arboriculture & Urban Forestry, Arboricultural Consultant, Palms, Ontario Arborist, and Western Arborist. He is an ISA TRAQ instructor and has taught workshops on tree appraisal around the U.S. and Canada.


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