The Nurse Staffing Levels Bill will become law today, making Wales the first European nation with a legal duty to have sufficient staffing levels on acute hospital wards.
The Bill was proposed by Kirsty Williams, Leader of the Welsh Liberal Democrats, and the Assembly voted in favour of it last month.
Williams has pledged to extend the law to include mental health wards, maternity wards and community nurses in the next Assembly.
The Welsh Liberal Democrats will make Wales a world leader for patient care.
In the forthcoming election, the Welsh Liberal Democrats will show that we have listened to people’s concerns. We all want NHS staff to have the time to care for our loved ones, which is why the Welsh Liberal Democrats will deliver safe staffing levels across the NHS. We’ll put more nurses in our hospitals and in our communities to deliver an NHS that works for you.
There were a few surprises overnight as Wales' 40 constituencies declared their results.Read the full story ›
Jenny Willott has lost Cardiff Central to Labour ten years after she won it from them. In a seat with a high student population she resigned as parliamentary private secretary to Chris Huhne in order to rebel against increasing student tuition fees. She later benefited from Huhne's downfall, becoming a government whip in the subsequent reshuffle. She also became the only Lib Dem woman to attend cabinet. But none of that saved her from tonight's anti-Lib Dem tide.
Labour have gained Cardiff Central, securing a 40% share of the vote.
Jo Stevens saw off the challenge of Lib Dem candidate Jenny Willott, who previously held the seat, with a 4,981 majority.
The Conservatives have gained Brecon and Radnorshire from the Liberal Democrats, securing 41.1% of the vote.
Christopher Davies saw off the challenge of Lib Dem candidate Roger Williams who previously held the seat, with a 5,102 majority.
Unlike his namesake Mark Williams, Roger Williams has proved unable to resist the anti-Lib Dem tide. He saw his vote drop by 18% as the Conservative chris Davies took the seat, with Labour also well up as the tradition of tactical voting in Brecon and Radnorshire broke down.
By Kevin Ashford, Ceredigion
Lib Dem's Mark Williams in Ceredigion says he needs to digest the national picture, but it looks like it'll be "bitterly disappointing".
By Nick Hartley, Brecon & Radnorshire
Welsh Liberal Democrat sources have conceded they are set to lose their hold on Brecon & Radnorshire to the Conservative party in one of Wales' most closely contest seats.
The mid-Wales constituency has been under the leadership of Roger Williams since 2001 and a party seat since 1997, but it is on course to see a 3,747 majority overturned in favour of Welsh Conservative candidate Chris Davies.
A loss would heap further angst on what exit polls have suggested will be painful night for the Liberal Democrats right across Britain.
The result is expected around 0300 BST.