ED-259A - Minimum Operational Performance Standard for Dual-Frequency Multi-Constellation Satellite-Based Augmentation System Airborne Equipment

We are pleased to announce the publication of ED-259A|Minimum Operational Performance Standard for Dual-Frequency Multi-Constellation Satellite-Based Augmentation System Airborne Equipment.
This document is the avionics standards for GPS/Galileo/SBAS equipment supporting Required Navigation Performance (RNP) en route and terminal operations, departure operations, RNP APCH (approach) down to Localizer Performance with vertical guidance (LPV) minima and Automatic Dependent Surveillance - Broadcast (ADS-B). This document does not provide specifications for a production approval. A future release of the document will provide requirements supporting production approval, typically through a new Technical Standard Order (TSO) or European Technical Standard Order (ETSO). This document has a Zipped supplement (ED-259A DO-401 Supplement) that contains six files.
It is available on the EUROCAE eShop:
https://eshop.eurocae.net/eurocae-documents-and-reports/ed-259a/