What does it mean when an arborist is ISA Tree Risk Qualified (TRAQ)?

When an arborist is ISA Tree Risk Qualified, it means that they have undergone a voluntary qualification program where they earn recognition as a tree care professional with specialized knowledge of tree risk assessments. They promote the safety of not only the tree, but the surrounding property and people. They must pass a written exam, as well as a training course and performance-based assessment. Credential holders must be recertified every five years.