27. A revised version of the registers, as it results from the annual canvass and other modifications introduced during the year, have to be published yearly. The annual canvass would undoubtedly produce some changes in the register [the deceased to be erased, those sentenced to prison or remitted to mental hospitals, those who come to the voting age, new entitled residents, those who have definitively left their residence]. With the possibility of continuous registration during the year and after the canvass, the requirement of having long periods for registration is fulfilled. On the other hand, alterations on the published version of a register pending elections have effects for the purposes of the election only if they are made before the fifth day prior to the date of the poll (Section 13B, Representation of the People Act 1983).
