The International Society of Arboriculture promotes the professional practice of arboriculture and fosters a greater worldwide awareness of the benefits of trees.

ISA focuses on providing research, technology, and education opportunities for tree care professionals to develop their arboricultural expertise. ISA also works to educate the general public about the …

Jul 15, 2025 · The International Society of Arboriculture (ISA) is a worldwide professional organization dedicated to fostering a greater appreciation for trees and to promoting research, technology, and …

When a professional earns the ISA TRAQ credential, they should be recognized by their peers and the public as a tree care professional who has specialized knowledge in tree risk assessment.

Showing the world the benefits of trees. Through research, technology, and education, we promote arboriculture. Find out more...

Jul 7, 2025 · This online search directory is a voluntary listing and is strictly intended to serve as a method to verify and/or locate ISA credential holders in order to secure tree care services.

To be a ISA Certified Tree Climber, candidates must have the skill and endurance to climb trees, demonstrate high regard for safety, and be able to get the job done off the ground.

To earn an ISA Certified Arborist credential, you must be trained and knowledgeable in all aspects of arboriculture. ISA Certified Arborists must also adhere to the Code of Ethics that strengthens the …

Oct 23, 2024 · To earn this prestigious credential, candidates must pass a comprehensive examination that covers a wide range of topics, including tree biology, tree selection, tree installation, tree …

Benefits of Credentials ISA credentials help consumers identify qualified, knowledgeable tree care professionals. Read More