What do you see when you step onto the bridge of a modern ship or well-equipped boat? Chances are that RTCM standards and RTCM activities had a lot to do with the communication and navigation equipment there. In the United States, the Federal Communications Commission and U.S. Coast Guard use RTCM standards to specify radar systems, Emergency Position Indicating Radio Beacons, and the basic version of Digital Selective Calling radios. Personal Locator Beacons used on land in the U.S. are required to meet an RTCM standard. RTCM standards are used internationally for Differential Global Navigation Satellite Systems and Electronic Chart Systems. RTCM members also have the opportunity to monitor and participate in the development of international standards for maritime radiocommunication and electronic navigation systems.