https://techcrunch.com/2020/04/16/eu-lawmakers-set-out-guidance-for-coronavirus-contacts-tracing-apps/

The European Commission has published detailed guidance for Member States on developing coronavirus contacts tracing and warning apps.

The toolbox, which has been developed by the e-Health Network with the support of the Commission, is intended as a practical guide to implementing digital tools for tracking close contacts between device carriers as a proxy for infection risk that seeks to steer Member States in a common, privacy-sensitive direction as they configure their digital responses to the COVID-19 pandemic.