[PeachPlum]

see also:

Presented to Parliament by the Secretary of State for Foreign and Commonwealth Affairs by Command of Her Majesty, February 2016

2.1 The result of the referendum on the UK’s membership of the European Union will be final.

[ZeroGravitas]

Genuine question, what does that line mean?

Is it saying, the UK will have to leave the EU (for whatever definition of "leave") if that side of the vote wins.

Is it saying that the UK cannot change its mind ever i.e. it cannot rejoin even after a change of governtment and a second referendum?.

Or is it just saying, the result of the vote is the result?

[namelost]

It was a government policy, not a law. It is basically meaningless.