The objective of this effort is to have a single source reference document for human factors regulatory and guidance material for flight deck displays and controls, in the interest of improving aviation safety. This document identifies guidance on human factors issues to consider in the design and evaluation of avionics displays and controls for all types of aircraft (14 CFR parts 23, 25, 27, and 29). It is intended to facilitate the identification and resolution of typical human factors issues that are frequently reported by FAA Aircraft Certification Specialists. Topics address the human factors/pilot interface aspects of the display hardware, software, alerts/annunciations, and controls as well as considerations for flight deck design philosophy, intended function, error management, workload, and automation. A checklist of topics to consider during a display system evaluation, sample testing procedures and scenarios, and a list of key references are provided as appendices to facilitate the use and application of this document.