An ISA Certified report is a professional tree assessment completed by an arborist certified by the International Society of Arboriculture (ISA). It documents a tree’s health, structure, potential risks, and recommended actions based on industry standards. In many municipalities, an ISA Certified report is required to obtain a tree removal permit, especially for protected or regulated trees. These reports are also useful for insurance claims, property transactions, construction planning, and disputes, providing clear, credible documentation to support informed decisions.