This document includes recommendations of installations of adequate landing and taxiing lighting systems in aircraft of the following categories: aSingle engine personal and/or liaison type bLight twin engine cLarge multiengine propeller dLarge multiengine turbojet eMilitary high performance fighter and attack fHelicopter which are subject to the following CFR Parts certification: Part 23 – Airworthiness Standards: Normal, Utility, Acrobatic and Commuter Aircrafts Part 25 – Airworthiness Standards: Transport Category Aircrafts Part 27 – Airworthiness Standards: Normal Category Rotorcraft Part 29 – Airworthiness Standards: Transport Category Rotorcraft