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LORAN C
Primary Mission Areas:
Maritime Information:
LORAN-C STATUS INFORMATION

LORAN-C Current Status

LORAN-C provides coverage for maritime navigation in U.S. coastal areas. It provides navigation, location, and timing services for both civil and military air, land and marine users. LORAN-C is approved as an en route supplemental air navigation system for both Instrument Flight Rule (IFR) and Visual Flight Rule (VFR) operations. The LORAN-C system serves the 48 continental states, their coastal areas, and parts of Alaska. The following links show LORAN-C planned and emergency outage information.

While the Administration continues to evaluate the long-term need for continuation of the LORAN-C radionavigation system, the Government will operate the LORAN-C system in the short term. The U.S. Government will give users reasonable notice if it concludes that LORAN-C is not needed or is not cost effective, so that users will have the opportunity to transition to alternative navigation aids. With this continued sustainment of the LORAN-C service, users will be able to realize additional benefits. Improvement of GPS time synchronization of the LORAN-C chains and the use of digital receivers may support improved accuracy and coverage of the service. LORAN-C will continue to provide a supplemental means of navigation. Current LORAN-C receivers do not support nonprecision instrument approach operations.