Postal services - Hybrid mail - Part 1: Secured electronic postal services (SePS) interface specification - Concepts, schemas and operations (CEN/TS 15121-1:2011)
Postal services - Quality of service - Measurement of loss and substantial delay in priority and first class single piece mail using a survey of test letters
Postal services - Open standard interface between image controller and enrichment devices (OCRs, video coding systems, voting systems) (CEN/TS 15448:2014)
Postal services - Method for measurement of parcel transit time for cross-border parcels within the European Union and EFTA using Tracking and Tracing (CEN/TS 15472:2016)