Members of Parliament voted in favour of the Northern Ireland Troubles Bill on Tuesday, securing a result of 330 yes votes against 178 no votes.
Last week the government introduced a series of amendments to the draft law, among them a requirement that the attorney general must provide consent before any serious prosecutions can proceed.
The Democratic Unionist Party (DUP) has expressed concern that MPs have not been afforded sufficient time to scrutinise the proposed changes.
The vote took place in the House of Commons as part of the ongoing parliamentary consideration of legislation intended to manage the legacy of the Troubles in Northern Ireland.
The specific amendment regarding prosecutorial consent represents a significant procedural addition to the bill's framework.
Critics within the DUP argue that the timeline for reviewing these amendments has been too compressed for adequate examination.
No further details were provided on whether the government intends to submit additional amendments before the bill reaches its next stage in Parliament.
The outcome reflects a clear majority support for the legislation despite the objections raised by unionist representatives.