WESTERN Victoria MPs have won a concession from the state government in return for supporting a voluntary assisted dying bill.
The life expectancy for terminally ill people to access euthanasia will be cut from 12 to six months in a last-minute bid to secure the vital final votes on the proposed laws.
The amendment to the assisted dying bill, which has already passed Victorian Parliament's lower house, will be introduced despite Premier Daniel Andrews previously insisting the proposed model did not require changes.
But the government has offered the key concession to gain the support of "Vote 1 Local Jobs" MP James Purcell and Liberal Simon Ramsay who have both called for a reduction in the timeframe for patients to access the scheme.
The amended timeframe will include an exception for people diagnosed with Motor Neurone Disease, allowing them to end their lives within 12 months of their expected death.
The assisted dying bill needs the support of at least 21 MPs in Victorian Parliament's upper house, which has 40 members.
Supporters of voluntary euthanasia in State Parliament believe they have locked in 19 votes.
Debate on the bill will continue in the upper house this week.
Under the proposed model patients will have to make three requests to end their lives with the process overseen by two doctors, one of whom must be an expert in the patient's condition.
The amendments come after the lower house passed the bill in its original form following a marathon sitting week last month.
Lowan MP Emma Kealy and Ripon MP Louise Staley voted for the euthanasia bill in its previous form after a marathon lower house debate last month.
-with Rex Martinich