A street sign and some trees in the background

Healthy Trees, Happy Homes

Our mission is to foster engagement, reinforce standards, and exchange professional ideas supported by scientific research among those in the tree care industry.

We do this by advancing arboriculture through ISA Certifications, Arborist Training Programs, and providing forums for the exchange of ideas for individuals, businesses, and organizations.

Tree care professionals at a trade show.
Illinois Arborist Association logo with tree and oak leaf.

Join The Arboriculture & Urban Forestry Movement

Elevate your career and contribute to the advancement of arboriculture in Illinois and beyond. Gain professional recognition through our exclusive IAA Member Logo and our prestigious awards program. As a member, you'll gain access to exclusive resources, networking opportunities, and the chance to shape the future of our field.

Support the Norm Hall Scholarship Fund

Training and Educating Generations of Arborists

Norm began his arborist career working alongside his father Larry. Norm was a member of the Illinois Arborist Association and the International Society of Arboriculture. Serving as the Lead Instructor for the IAA, Norm has trained over 800 Illinois arborists. Training was Norm’s passion...saving lives really mattered to him.

Norm Hall Updated QR code

IAA Mission Statement

 “Foster engagement, reinforce standards, and exchange professional ideas supported by scientific research among those in the tree care industry.”

At the Illinois Arborist Association, trees, and arboriculture are not just professions but passions. With a legacy of 43 years, we are more than a nonprofit organization; we are a vibrant community dedicated to nurturing and expanding the knowledge, standards, and enthusiasm for arboriculture across Illinois. Whether you're seeking arborist certification or looking to connect with fellow tree enthusiasts, you've come to the right place.

Arborist working high in a tree.
A man in yellow shirt climbing up a tree.
Illinois Arborist Association ATP logo.

Foster Engagement, Reinforce Standards

Our commitment is to foster engagement, reinforce standards, exchange professional ideas supported by scientific research among those in the tree care industry. We believe in the power of education, hands-on training, and professional development to transform individuals and communities. Our programs are designed to inspire and educate, from certification classes to live workshops, ensuring every member has the tools and knowledge to thrive.

Online Learning

Through continuing education, we offer a learning journey that combines theoretical knowledge with practical skills. Whether you're new to the field or looking to advance your career, our courses are tailored to meet your needs.

A man in yellow shirt climbing up a tree.
Healthy trees, happy homes, ISA certification.

Your Arboriculture Hub

Join the IAA Mailing List

Stay connected with the Illinois Arborist Association. Subscribe to receive updates on upcoming workshops, CEU opportunities, events, and industry news—all designed to help you grow in your arboriculture career.