The Human Factors Research and Engineering Group (ATOP - Human Factors) provides scientific and technical support for the civil aviation human factors research program and for human factors applications in acquisition, certification, regulation, and standards. It develops and assures implementation of human factors policies, regulations, programs, and procedures which promote the safety and productivity of the national airspace system. It also formulates and manages the aviation human factors research program and provides human factors support to acquisition and regulatory activities. The Program Director serves as the principal advisor to the Administrator on human factors.

The Human Factors Research and Engineering Group assists associate administrators, regional administrators, center directors, and heads of offices and services in coordinating support, expertise, and data to carry out assigned human factors functions and activities.

The FAA Human Factors Policy Order 9550.8 establishes policy, procedures, and responsibilities for incorporating and coordinating human factors considerations in Federal Aviation Administration (FAA) programs and activities to enhance aviation safety, capability, efficiency, and productivity.