Now the Conservatives have published their EU Referendum Bill there only remains the small question of how it could become law.
It will not be a Government Bill but will now be taken forward as a "Private Members Bill". As such its chances of survival are limited and at the mercy of Parliamentary procedure [specifically Standing Order No14 (SO 14) which allows some Parliamentary time to be allotted to the winners of a Parliamentary ballot]. Here is how it works.
Second hurdle - get a Friday sitting allotted. The presentation of the Bill is a formality. However once past it will be allotted a Friday sitting (9.30am to 2.30pm). The first date available is 5 July 2013 but they continue through to February.
Third hurdle - assemble 100 MPs to vote through a "closure motion". If the Bill is still being discussed at 2.30 on its Friday an MP must move that "the Question be now put" otherwise the Bill will be adjourned. For this to happen 100 MPs are needed - no small task normally given Friday is normally an MPs constituency day but in this case this would not be a problem as it will be a three line whip.
Fourth hurdle - win a vote on the Bill's second reading. Once the closure is secured a vote on 2nd reading will follow. This will be the crucial vote supporters of the Bill will need to win.
Fifth, sixth and seventh hurdles etc - survive the Committee and report stages and Lords. If successful in a 2nd reading vote the Bill will go into a Commons public bill committee. If it survives this it will then come back to the House of Commons for report stage (where there could be a vote), a third reading and then onto the Lords...
All quite drawn out. It is safe to assume there is little chance of the Bill becoming law but there could potentially be a vote, and that is perhaps what its proponets really wanted all along.