The Laser Centerline Localizer (LCL) uses a series of low power, but highly visible laser beams to illuminate approach corridors to provide a pilot on final approach to landing with precise centerline guidance. The LCL was initially developed for aircraft carrier flight operations, but it has dual-use in the civilian sector. The first operational deployment of the LCL was on the U.S.S. Constellation, CV-64, in March 1994. The installation of the LCL on the U.S.S. Constellation is discussed along with the results and conclusions from the flight operations to date. Quantitative analysis from 110 naval aviators who have flown the LCL at sea is presented. Pilot acceptance has been overwhelmingly positive. Civil applications of the LCL are described. The LCL provides definitive traffic separation for parallel runways, which are a common feature at larger airports where the incursion of aircraft into airspace reserved for the other runway is an ongoing concern. The LCL is extremely beneficial and safety enhancing at airports that have no good visual access at night due to terrain. Helicopter landing pads, particularly on oil platforms, greatly benefit from the LCL. Because of its small size, portability, and low power consumption, the LCL is ideal for civil disaster relief operations.