● plan your journey to take sufficient breaks. A minimum  break of at least 15 minutes after every two hours of driving  is recommended  ● if you feel at all sleepy, stop in a safe place. Do not stop on  the hard shoulder of a motorway  ● the most effective ways to counter sleepiness are to drink,  for example, two cups of caffeinated coffee and to take a  short nap (at least 15 minutes)  92. Vision.   You MUST   be able to read a vehicle number plate, in good  daylight, from a distance of 20 metres (or 20.5 metres where the  old style number plate is used). If you need to wear glasses (or  contact lenses) to do this, you MUST   wear them at all times while  driving. The police have the power to require a driver to undertake  an eyesight test.  93. Slow down, and if necessary stop, if you are dazzled by bright  sunlight.  94. At night or in poor visibility, do not use tinted glasses, lenses or  visors if they restrict your vision.  3. Alcohol and drugs  In England and Wales you MUST NOT drive with a breath alcohol  level higher than 35 microgrammes/100 millilitres of breathor a blood alcohol level of more than 80 milligrammes/100 millilitres of Laws RTA 1988 sect 96 & MV(DL)R reg 40 & sch 8  95. Do not drink and drive   as it will seriously affect your judgement  and abilities. highwaycodeuk.co.uk 44 