These recommendations establish the minimally acceptable guidelines for the design@ selection@ and installation of systems and equipment aboard marine vessels applying electrical apparatus for power@ propulsion@ steering@ automation@ navigation@ lighting@ and communications. These recommendations describe present-day acceptable electrical engineering methods and practices.It is recognized that changes and improvements in shipboard requirements may develop that are not specifically covered herein; such changes@ if incorporated in the design@ should be equal to the safety and reliability levels established herein and generally in accord with the intent of these standards.In developing these recommendations@ consideration was given to the electrical and engineering requirements promulgated by various regulatory agencies@ classification societies@ and by the International Maritime Organization??s International Convention for the Safety of Life at Sea (IMO SOLAS)@ as amended.This recommended practice was developed by a voluntary consensus body to provide assistance and guidance to regulatory agencies governing electrical engineering requirements.