This SAE Recommended Practice applies to motor vehicle signaling and marking devices which use light generated by a discharge source. This document provides test methods, requirements, and guidelines applicable to the unique characteristics of discharge lighting systems and their components. These are in addition to those required for signal and marking devices. This document is intended to be a guide to standard practice and is subject to change to reflect additional experience and technical advances.
SAE J2320 will be stabilized at this time because no further changes to the procedures or requirements are foreseen in the immediate future since the September 2008 updates were made. If proposed changes come about the document will be opened for review and action.