This registry lists the companies having gone through the ONE Order certification program.
- Airlines – Any airline that deploys and support ONE Order communication messaging and capability
- Vendors and IT providers – any vendor that offers ONE Order solutions and services (OMS, Delivery Provider, Accounting) can become ONE Order capable
Please see the ONE Order Registry Disclaimer and Terms of Use (pdf).
Thank you for your interest in NDC and ONE Order certification programs. Please note that, as of 1 November 2022, participants have completed transition to the Airline Retailing Maturity (ARM) index program. Please see the new ARM index registry and information on the ARM index program.