A Draft Statutory Instrument, secondary legislation made under powers granted by an existing Act. The Commons vote determines whether the Regulations come into force as written. SIs are how the working detail of UK law is set without primary legislation.
Totals are Parliament’s official count, which does not include the tellers. Parliament’s published list names 284 of the 281 Aye voters and 197 of the 201 No voters; tellers are listed and marked but not counted.