interesting discussion on the seatbelt laws in motorhomes and the differing ideas on the law .we have a traffic cop that goes in our local and i was asking him about the different laws concerning this subject , his answer was i couldent tell you to be truthful so i asked would you stop someone who was carting somebody about in the back of one probably unseatbelted he said i doubt i could see who if anybody was in the back of one there that high up and many have tinted widows so you just cannot see them . but like he said if your carrying passengers and you should have an accident and it was discovered that passengers were being carried in contravention of the law then you would be prosecuted and your insurance would probably be invalidated with all the consequences that ,that would entail . its that easy . he did say though that most vehicles state how many passengers can legaly be carried mine says seven most cars say 5 .sports cars majority say two, motorhomes are classed as berth and as far as he was concerned and how he reads the law , that was the maximum amount of passengers that vehicle was legally designed to carry retro fitting of seat belts and other seats capable of extra passengers such as double front belted seats from single seats could be classed as a modification , unless that modification has been notified to dvla and approved ,your insurance company told then in his eyes the vehicle is being used illegally .