Holyrood is to receive major powers enabling authorities to tackle Scotland's drink-driving problem in a more efficient way.
The new powers were outlined in the Scotland Bill, announced by the UK Government. The plan is expected to boost the Scottish Parliament's control over drink-driving limits.
The Royal Society for the Prevention of Accidents (RoSPA) in Scotland has welcomed the initiative.
RoSPA road safety officer Kathleen Braidwood said: "Although we believe the best option is for a lower limit to be applied across the UK, we strongly support the transfer of powers to Scotland so it can lower its drink-drive limit to 50 milligrams of alcohol per 100 millilitres of blood.
"We hope this would set an example that the rest of the UK might follow."
The SNP administration said it favours lowering the legal alcohol limit from 80 milligrams per 100 millilitres of blood to 50 milligrams.
RoSPA highlighted the problem before the launch of the annual festive drink-driving campaign.
Ms Braidwood said: "Ahead of this, we welcome the focus that the Scotland Bill is putting on such an important measure to reduce road casualties."
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