本SAE航空航天推荐规程（ARP）涵盖了客运飞机乘客舱内使用的照明信息标志的一般设计和性能特征。关于法规，本ARP涵盖与联邦航空管理局（FAA）和欧洲航空安全局（EASA）协调的法规；如果存在任何差异，申请人应审查相应的法规。“照明信息标志”是用于通知乘客车厢的照明标志。标志可以使用符号或字母来传达信息。本ARP不适用于ARP503规定的“出口”标志。

This SAE Aerospace Recommended Practice (ARP) covers the general design and performance characteristics of illuminated information signs for service in the passenger compartment of passenger transport aircraft. Relating to regulations, this ARP covers regulations that have been harmonized with the Federal Aviation Administration (FAA) and European Aviation Safety Agency (EASA); if there are any differences, the applicant should review the appropriate regulations."Illuminated information signs" are lighted signs used to inform occupants of the passenger compartment. Signs may use symbols or letters to convey messages.This ARP does not apply to "EXIT" signs, which are the subject of ARP503.