This document provides the aircraft designer, architect, industrial designer and electrical engineer with design criteria to properly illuminate aircraft cabin interiors. This document covers the general recommendations for cabin lighting in order to provide satisfactory illumination for, but not limited to: boarding and deplaning; movement about the cabin; reading; use of lavatories; use of work areas; exiting under emergency conditions; using stowage compartments, coat rooms and closets; and using interior stairways and elevators (lifts).