Issued in March 2013. This is a guidance document on the concepts, methods, and criteria for verification and validation of an Aerodrome Surface Routing Network (ASRN). The ASRN of an Aerodrome Mapping Database (AMDB) is a connected network defined by node and edge features that support taxi routing functions (e.g. D-Taxi) and other applications (e.g. the ones developed within SESAR and NextGen). Such applications contribute to situational awareness as well as safety, capacity, and efficiency of operations.