(1) The register as prepared or revised under this Act shall be the register for the electoral district to which it relates and shall be used for any election in that electoral district until the register is next revised under section 20.
(2) If a register for an electoral district is not published within the time required by this Act then, until the date following the day on which it is published, the previous register for that electoral district shall continue in force, and where any register used at an election is a register continued in force by this subsection, this Act shall have effect in relation to that register as if it were the register revised under section 20.