# Referendums (Scotland and Wales) Act 1997, Paragraph 10


(1) The back of the ballot papers shall be in the form set out in the Appendix.
(2) A ballot paper—
(a) shall be capable of being folded up,
(b) shall have a number printed on the back, and
(c) shall have attached a counterfoil with the same number printed on it.
(3) For the referendum in Scotland, the two forms of ballot paper shall be of different colours.

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Source: https://www.legislation.gov.uk/ukpga/1997/61/schedule/3/paragraph/10 (the official version)
Page: https://openlegislation.uk/referendums-scotland-and-wales-act-1997/schedule-3/paragraph-10
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.