While the whole R.A.G rating algorithm is difficult to interpret due to the number of variables involved, it does appear to be weighted heavily towards the individual testers. While MOT testers don’t need to share their personal RAG score, it is vital that you do everything in your power to ensure this rating is positive – which includes carrying out the annual MOT training and assessment ahead of time, as the DVSA rates those who have completed their assessment earlier more positively.