How does a white paper tie in with a bill in parliamentary terms?

Answer 1

A white paper is a Bill, after the first reading of the law making process.

A Bill is a law which has not been signed off as an actual law, in effect, it is just a proposal. The proposal goes through various stages to become a law, the stages are as follows:
House of Commons-

Draft,
First reading,
Second reading,
Committee stage,
Report stage,
Third reading.


Then the process is repeated in the House of Lords, during the first reading in the Commons, the Bill is called a green paper, as it cannot be amended or stopped. After the first reading the Bill can officially be called a white paper.

Answer 2

In parliamentary terms, a white paper is a document that presents government policies or proposals for consideration by the legislature. It serves as a precursor to a bill, providing information and analysis for lawmakers to review and discuss before the formal introduction of the proposed legislation. While a white paper outlines the government's intentions, a bill is the actual draft of the proposed law that undergoes debate, amendment, and voting in Parliament.