A bill is proposed legislation under consideration by a legislature. A bill does not become law until it is passed by the legislature as well as, in most cases, approved by the executive. Once a bill has been enacted into law, it is called an act of the legislature, or a statute. Bills are introduced in the legislature and are discussed, debated and voted upon.
The word bill is primarily used in the Anglophone United Kingdom and the United States. The parts of a bill are known as clauses, until it has become an act of parliament, from which time the parts of the law are known as sections.
In Napoleonic law nations (including France, Belgium, Luxembourg, Spain and Portugal), a proposed law may be known as a "law project" (Fr. projet de loi), which is a government-introduced bill, or a "law proposition" (Fr. proposition de loi), a private member's bill. For example the Dutch parliamentary system does not make this terminological distinction (wetsontwerp and wetsvoorstel being used interchangeably).
Bills generally include titles, enacting provisions, statements of intent, definitions, substantive provisions, transitional clauses, and dates which the bill will be put into effect. The preparation of a bill may involve the production of a draft bill prior to the introduction of the bill into the legislature. In the United Kingdom, draft bills are frequently considered to be confidential. Pre-legislative scrutiny is a formal process carried out by a parliamentary committee on a draft bill.
In the Parliament of India, the draft bill is sent to individual ministry relating to the matter. From there the bill goes to the Ministry of Law and Justice (India) and then is passed on to the Cabinet committee which Prime Minister heads.
Pre-legislative scrutiny is required in much of Scandinavia, occurs in Ireland at the discretion of the Oireachtas (parliament) and occurs in the UK at the government's discretion.