The European Space Agency ESA certifies the open-source real-time operating system RTEMS in the SMP configuration for ECSS Criticality Category C and D.

This is based on an ESA-founded project performed by Edisoft, embedded brains GmbH, the Trinity College Dublin, and Jena Optronik between 2018 and 2021. During this project, a largely automated qualification environment including test suite and toolchain has been developed which covers documentation, testing and evaluation summary.