CEN/TR 15472 [documento electrónico] : postal services: measurement of transit times for parcels by the use of a track and trace system / European Committee for Standardization
CEN/TS 15511 [documento electrónico] : postal services: quality of service: information available on postal services / European Committee for Standardization
CEN/TR 15735 [documento electrónico] : postal services: quality of service: distance to access points / European Committee for Standardization
EN 14012 [documento eletrónico] : Postal services - quality of service - complaints handling principles
EN 13850 [documento eletrónico] : postal services - quality of services - measurement of the transit time of end-to-end services for single piece priority mail and first class mail