A law is likely to be passed today designed to make it harder to but cheap alcohol in Wales.
A vote will be held later in the Assembly on setting a minimum price per unit of alcohol.
The Welsh Government says it could help tackle alcohol and abuse and save the NHS money.
The Health Secretary Vaughan Gething has previously said that it "will save lives".
The Welsh Government's Public Health (Minimum Price for Alcohol) (Wales) Bill was introduced last October.
Last year, Welsh Government-commissioned research found that if a 50p minimum unit price was introduced it would be estimated to avoid 66 deaths.
Vaughan Gething has said minimum pricing will be part of a bigger package of measures to reduce the harms caused by excessive alcohol consumption in Wales: