AASHTO Guidelines for Unmanned Aircraft Systems (UAS) Applications for Bridge Inspections: Element-Level Data Collection, First Edition (2025), provides guidance for using UAS to supplement conventional bridge inspection techniques. An opening section covers background, intent, and implementing and scaling the use of UAS within an inspection program. Recommendations follow for organizational structure and workflow, for airframe selection including minimum sensor specifications, and for personnel training covering responsibilities, qualifications, and FAA regulations for commercial UAS operations. A dedicated section describes the UAS bridge inspection methodology used to collect element-level data, and a closing section addresses IT infrastructure and data storage. The guidelines aim to ensure quality and consistency in data collection. They are intended for state departments of transportation, bridge owners, and inspection program managers considering UAS deployment.