U.K. lawmakers are set to vote again on Friday on legislation that would permit terminally ill adults in England and Wales to choose to end their lives. The Terminally Ill Adults (End of Life) Bill, which was previously stalled by unelected lawmakers in the House of Lords, has returned to the House of Commons.

The bill proposes that adults with a prognosis of fewer than six months to live could apply for an assisted death, requiring approval from two doctors and an expert panel. Due to a four-year implementation period, assisted dying would not be available across England and Wales until at least 2031.

This vote is anticipated to be close. While a previous version of the bill received support in the House of Commons, the margin of victory narrowed significantly in its second reading. The government has adopted a neutral stance, classifying the vote as a matter of conscience, allowing members of the Labour Party to vote freely.

Prime Minister Andy Burnham, who was not a Member of Parliament during the earlier votes, has stated he will abstain from voting to avoid influencing the debate. His predecessor, Keir Starmer, who has since left Parliament, had supported the proposed legislation.

Lauren Edwards, the lawmaker leading the bill in the House of Commons, has urged colleagues to send the bill back to the House of Lords for further scrutiny. Supporters are considering invoking the Parliament Acts, a seldom-used legislative mechanism, if the bill faces further obstruction in the House of Lords. These acts allow bills passed by the House of Commons in two consecutive sessions, but rejected by the Lords, to become law without the Lords' approval.

Proponents view assisted dying as a significant social policy change, potentially preventing individuals from traveling to countries like Switzerland for end-of-life assistance. However, opponents have raised concerns about the bill's safety and workability, citing potential risks of coercion for vulnerable individuals and inadequate safeguards for people with disabilities. Dr. Zubir Ahmed, a cancer surgeon and lawmaker, also highlighted the difficulty in accurately predicting a patient's prognosis, noting that doctors are often incorrect when estimating life expectancy.

Assisted suicide, where a doctor prescribes a lethal dose of medication for a patient to self-administer, is legal in various jurisdictions globally, including Australia, Canada, the Netherlands, and parts of the United States, with differing eligibility criteria. In July, France's lawmakers supported a similar bill, but its enactment is pending a constitutional review.