Submitted by Lt. Cmdr. Marlon Heron, Lt.j.g. John Busby, and Mr. Darryl Randolph, U.S. Coast Guard Navigation Center The Long Range Identification and Tracking (LRIT) system is a designated International Maritime Organization (IMO) system designed to collect and disseminate vessel position […] Source: USCG
Link: 12/4/2018: Long Range Identification and Tracking: Have you reported in the last six hours?