From today the Protection of Freedoms Act is in force, which now makes it a criminal offence to clamp a vehicle without ‘lawful authority’. This means that it is now illegal to clamp vehicles on private land in most circumstances in England and Wales (it has been banned in Scotland already). There are some cases where it would still be allowed, for example in some car parks covered under by-laws (railway stations, council land, airports etc…) or on public roads by the Police and DVLA / VOSA.
The RAC Foundation have produced a handy FAQ which can be found here.
A new appeals service has also been launched as it is expected that the clamping ban will result in an increase in private parking fines. The appeals service is called POPLA (Parking on Private Land Appeals) and their website can be found here.