Federal agencies on January 8 issued a notice asking for the public’s help to decide if there is a need to continue to operate or invest in the loran-C radio navigation system beyond September 30. They gave the public only 30 days–until February 7–to submit comments. The DOT and Department of Homeland Security seek public input on the extent to which the current system is used; and the extent to which enhanced loran would be applied as either a complementary service or as a backup to GPS.