Clause-by-clause consideration

Clause-by-clause consideration is the consideration of a bill on an in-depth basis. This is part of the committee stage in Westminster style parliaments. This phase of consideration is generally seen to be the most scrutinous and technical in nature as lawmaker consider each clause in a separate division of debate.
Clause-by-clause consideration takes place in a committee designated to study the bill in question. Generally speaking, clause-by-clause consideration in committee takes place in-between the second and third readings of the bill; however, the legislature may have the authority to refer a bill to a committee before the second reading stage has been completed. While studying the clauses of the bill, the committee can choose to adopt them, delete them, or amend them. However, any amendments made must remain true to the principal goal of the bill.
After considering the clauses of the bill, a committee must report the bill back "with amendment", or "without amendment". If amendments were made, then the House resolves itself into a Committee of the Whole in order to consider the committee's recommendations. The House can change, overrule in part, or entirely ignore the recommendations of a committee.

Canadian provisions for financial bills

In Canada if a committee fails to return a budget, or a bill that would appropriate funds to the House with its report of recommendations by a deadline defined in the Standing Orders of the House in question, then any recommendations of the committee would be deemed to have been withdrawn and the bill will be deemed to have been reported back to the House, without any amendments. This convention is in place in order to prevent a committee from attempting to withhold supply from the government.