Following the ruling by the UK Supreme Court on 24 January 2017 that the UK Government does not have the power to trigger Article 50 without first being authorised to do so by an Act of Parliament, the UK Government has presented a Bill to Parliament which would confer power to the Prime Minster to trigger Article 50. Full details of the Bill can be found here.
The Department for Exiting the European Union has published explanatory notes to the European Union (Notification of Withdrawal) bill.
Whilst the notes do not form part of the Bill and have not been endorsed by Parliament, they are intended to assist the reader of the Bill and to help inform debate on it.
The notes provide explanations for the purpose of the Bill, why it is being fast-tracked and why the relevant Parliamentary committees have not been given the opportunity to scrutinise the Bill.
In addition, the notes help to provide clarification as to the interpretation of the Bill. For example, they state that withdrawal from the EU includes withdrawal from the European Atomic Energy Community.
The explanatory notes are available online here.