2026 Annual Training Conference | | We are excited to host you in Boise, ID this fall September 27th - 30th, 2026 for our 2026 Annual Training Conference. Connect with people across different arboriculture disciplines, listen to over 35 speakers, and earn CEUs! | | Early Bird Rates through July 31st. | | |
Conference Highlights:
- Saturday, Sept 26th, 8:00AM - 6:00PM | TCC Championship
- Sunday, Sept 27th, 9:00AM - 12:00PM | TCC Champion Masters
- Sunday, Sept 27th, 1:00PM - 5:00PM | Tree Academies
- Monday, Sept 28th, 8:00AM - 4:00PM | Field Day
- Monday, Sept 28th, 5:00PM - 6:00PM | Welcome Reception
- Monday, Sept 28th, 6:30PM - 8:30PM | TREEvia Night at Lost Grove
- Tuesday, Sept 29th, 8:30AM - 4:30PM | Keynote & Conference Program
- Tuesday, Sept 29th, 4:45PM - 5:30PM | Annual General Meeting
- Tuesday, Sept 29th, 6:00AM - 8:00PM | ATC Dinner Reception (Chapter Awards & TREE Fund Silent Auction)
- Wednesday, Sept 30th, 8:30AM - 12:00PM | Conference Program
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Are You a Student or Early Career Arborist?
We have some limited scholarship available for you to attend our conference for free.
| | Tree Climbing Competitions | Thank you to everyone who helped make our Portland Tree Climbing Competition a success last weekend! Congratulations to our winners Aneesa and Noel! | Certified Arborist Exam Prep Course (Virtual) | |
Arboriculture is generally defined as the care and management of individual trees in the urban landscape. This comprehensive and participatory course is designed to prepare professionals for the Certified Arborist exam offered by the International Society of Arboriculture (ISA). This course is ideal for tree care specialists and urban foresters seeking to advance their careers in arboriculture. Over five weeks of lectures, the course prepares arborists through lectures and discussions that supplement the Arborists’ Certification Study Guide, the course textbook.
July 21st - August 20th, 2026 (Tuesdays & Thursdays) | 6:30PM - 8:00PM PT
Register Here
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Trees & Construction: Managing Trees Before, During & After Development | Olympia, WA
Join John Bornsworth for this course that will examine construction-related impacts to trees associated with residential, commercial, and civil development near retained forests and standing trees, including root disturbance, grade changes, hydrological alterations, cumulative impacts, and species-specific responses to injury.
August 21st, 2026 | 8:00AM - 4:30PM PT | 7.5 CEUs
Register Here
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Tree & Plant Appraisal Qualification (TPAQ) | Oregon City, OR
If you want introductory training in the theory and application of current tree and plant appraisal, register now to attend our TPAQ training. This event will utilize both instructor-led discussions and case scenarios to illustrate concepts allowing participants to become familiar with the relevant methods and techniques used to approach plant appraisals and the ability to make reasoned judgement about the value of trees and landscape plants.
November 5th - 6th, 2026 | 8:00AM - 4:30PM PT
Register Here
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Report Writing & Trees and the Law | Oregon City, OR
A Tree Warden and a lawyer team up to teach Tree Risk Assessment report writing in this exciting one-day workshop! First, learn the essential components of a Tree Risk Assessment report that are mandated by the A300s and get an overview of the TRAQ methodology. Then review example reports for Level 1 and Level 2 assessments. We will address some distinctions between private, municipal, and utility tree risk assessments. Finally, we'll conclude with a review of common report writing errors and how to avoid them. Throughout the day, tree risk case law examples will be interwoven through a Socratic-method discussion, and small-group breakout activities will reinforce the writing concepts covered.
December 11th, 2026 | 8:00AM - 4:30PM PT | 6 CEUs
Register Here
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Tree Risk Assessment Qualification Workshop 3.0 | Redmond, OR
November 18th - 20th, 2026
Register Here
Tree Risk Assessment Qualification Workshop 3.0 | Oregon City, OR
December 2nd - 4th, 2026
Register Here
| | Upcoming Arbor Chat Webinars | | |
Healthy Soils Support Healthy Trees - The Amazing Soils Genomics
July 21st | 12:00PM - 1:00PM PT
1 CEU
Register Here
This webinar shares cutting-edge knowledge with green industry professionals and provides ways to grow trees for the long term benefits with significantly reduced costs and resources.
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How to Diagnose Tree Disorders for Non-Diagnosticians
August 18th | 12:00PM - 1:00PM PT
1 CEU
Register Here
This webinar will teach you how to investigate concerns about pests and pathogens in trees using a step-by-step approach to figure out.
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The Pacific Northwest Chapter of the
International Society of Arboriculture (PNW-ISA)
5727 Baker Way NW Suite 200, Gig Harbor, WA 98332
503-874-8263
Toll Free: 800-335-4391
info@pnwisa.org
pnwisa.org
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