Council Tax (New Valuation Lists for England) Bill

I refer my hon. Friend back to what he said about the phrase"““a group of adjoining billing authorities””" in amendment No. 3. Is not the word ““adjoining”” redundant? If the amendment referred simply to a ““group of billing authorities””, it could cover a group of adjoining authorities, if necessary, and, as my right hon. Friend the Member for East Yorkshire (Mr. Knight) suggested, a group of authorities that, by virtue of the fluctuation of the country’s real estate values, found themselves in the same position regarding the movement of average values, and should thus be grouped for the purpose of a special revaluation? Would it not be helpful for the purposes of the amendment if—