Upcoming Courses

Tree Appraisal Workshop:

The Penn-Del Chapter is hosting a Tree Appraisal Workshop on April 18th, 2018.  James Komen will be teaching this course at Chatham University in Pittsburgh.  The course is only open to current Penn-Del Chapter members for a nominal fee of $20.  Class size is limited to 25 participants.  

Course overview:

This course is designed for any arborist engaged in the process of assigning fair market values on individual trees.  The theory and practice of the appraisal of woody plants will be explained and demonstrated.  Mr. Komen will review various approaches to valuation and demonstrate how to determine which method is the most suitable choice for different situations.  The primary focus will be placed on the Cost Approach Method and the Trunk Formula Method for determining the monetary value of trees.  There will be an outdoor component in which participants will have an opportunity for hands-on appraisal instruction.  Dress appropriately.

The course will start at 9:00 am and run to 4:30 pm.  Lunch is included.  


Chatham University
Mellon Center, Conover Room
0 Woodland Road
Pittsburgh, PA 15232

Tree Appraisal Workshop Registration

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Are you offering a course and want ISA credits? Please contact  our Chapter's Certification Liaison, Scott Sjolander at 814-350-7749 or [email protected]


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News from ISA

The Certification Board has revised the ISA Certified Arborist Code of Ethics! The ISA Certified Arborist Code of Ethics was intended to improve professional practice and provide a measure of protection for consumers of arboricultural services.

While most credential holders agreed in theory that implementation of ethical standards was necessary, we did hear significant feedback about certain parts of the agreement. Because all ISA Certified Arborists are required to sign the agreement to receive or maintain their ISA credential, it is important that this document reflects the value and the best practices of a quality certification program and the professional arborist. ISA Certified Arborists believe that this agreement does and will advance the profession of arboriculture.

ISA is not letting this feedback go unheard and we have made changes to the requirement for disclosure. We have now limited the scope of this disclosure requirement, asking all ISA Certified Arborists to only report those activities which are related to the professional practice of arboriculture. All ISA Certified Arborists will be asked to acknowledge the changes by signing the updated agreement when they come up for recertification.

Please view the revised ISA Code of Ethics and Certification Agreement/Release Authorization at: www.isaarbor.com/certification/codeOfEthics/index.aspx.

The ISA Certification Board believes that the Code of Ethics and Ethics Agreement creates a level of accountability within the profession. Our goal is to ensure that homeowners and consumers have a positive experience because of the high quality of service they receive from an ISA Certified Arborist, which increases the likelihood that they will support the ISA Certification Program over the long-term.

If you have additional Code of Ethics questions please contact ISA at [email protected]