Plain English Meaning

NAV/ is a label that flags what comes next as navigation information — usually which navigation standard or database entry applies to a route.

Full Definition

NAV/ is a flight plan or route data field prefix used in ICAO flight plans and RNAV procedure coding to identify navigation-related information, most commonly the navigation specification or required navigation performance (RNP) capability associated with a route or procedure. On RNAV departure charts and in flight management system () route coding, NAV/ introduces the identifier or navigation specification that applies to the .