9. The purpose of an MOT test is to check your vehicle annually for road worthiness this includes, emission test, rolling road test and comprehensive inspection using specialist equipment not available to the average "man on the street". Rules and regulations have to be followed to the letter or the law and are constantly being updated of which authorised examiners and MOT testers are aware of, so in short what might have been okay last year may not be this year. Constant training and application ensure all vehicles on the road reach the minimum standard required by VOSA.