Obviously people will stock up before the deadline. It sounds like a good excuse to put rates up anyway. And for you and me Rory, it wont be a problem, we will just have to do a little bit of "farming" to justify having red delivered. Its amazing how much fuel my Massey 240 gets through

It will be impossible to police, most will comply as they wont have a choice and the government make more money as white diesel has a fuel levy included in it before VAT is added.
There may even be a business opportunity here selling red on the black market. Whats not to like