The European Parliamentary Elections Regulations 2004

[F116.  At the end of paragraph (4) of rule 43 (voting by persons with disabilities) insert—E+W+S

The same list may be used for each relevant election or referendum and, where it is so used, an entry in that list shall be taken to mean that votes were so given in respect of each election or referendum, unless the list identifies the election or referendum at which the vote was given..]