The European Parliamentary Elections Regulations 2004

[F114.  At the end of rule 41 (voting procedure) insert—E+W+S

[F2(7)] The same copy of a register of electors or, where paragraph (3) applies, the same copy of the notice issued under section 13B(3B) or (3D) of the 1983 Act, may be used under paragraph (1) for each relevant election or referendum, and

(a)one mark may be placed in that register or on that notice under paragraph (1)(c) or in the list of proxies under paragraph (1)(d), to denote that a ballot paper has been issued in respect of each election or referendum; and

(b)where a ballot paper has not been issued in respect of a relevant election or referendum, a different mark must be placed in the register, or on the notice or list so as to identify each election or referendum in respect of which the ballot paper was issued..]