MARS Medical Appraisal Revalidation System

MARS is an all-Wales system provided by Health Education & Improvement Wales and funded by Welsh Government to facilitate the appraisal and revalidation of doctors.

If you are new to MARS or new to Appraisal & Revalidation you can find useful information on our Revalidation Wales website.

If you are a GP please use GP MARS.

Did you know that Good Medical Practice (GMP) 2024 came into effect on 30th January 2024? The Revalidation Support Unit created a brief user guide to detail the updates on MARS that were implemented on 18th March 2025.

Further information can be obtained here - GMP-Changes-Doctor-User-Guide-2025-2.pdf

Please note, the types of supporting information you need to collect and reflect upon for appraisal and revalidation have not been changed.