that was my understanding i.e. if available, seat belts should be used. It may also be worth noting that the European Whole Vehicle Type Approval Regs do say that sideways facing seats are not safe for travel and should not be used for such. motorhomes etc, now have "designated" seats and these must be fitted with appropriate restraints.and reply today.. copy pasted
To: James Allan
Subject: RE: Question Asked from England and Wales FAQ Web Site
Reply from Ask The Police
James
If seatbelts are available for the passengers that are present, they should be worn. Please see the following link:
http://www.motorhomeinfo.co.uk/seat-belts-in-motorhomes/
If no seatbelts are available to use, then a passenger could legally be 'unbelted' in the rear of the motorhome and sit/lay wherever they wish. However, you should consider the safety implications of this, should a collision occur.
Please note that in the circumstances you describe, even if the person was not committing an offence in relation to seat belt legislation, they may commit the offence of carrying passengers in a manner likely to cause danger. However, this would very much depend on the circumstances and would ultimately be a matter for a court to decide.
Regards,
PNLD
(NR)(CS)