Performance Base Navigation
RNP is RNAV operations with the added feature of on-board navigation performance monitoring and alerting. RNP has the potential to tolerate narrowed confidence on air traffic control intervention and/or route separation to achieve the overall safety of the operation.
According to ICAO, RNP is based on the navigation performance accuracy required of the population of aircraft using the airspace. State responsible for RNP airspace must define the requirements and ensure that adequate CNS services are available within the airspace to provide safe to provide safe separation. Aircraft must be approved by state of registry as being able to meet the RNP.
