Drink-driving convictions have fallen by a third in the past five years, according to new figures.
Justice Secretary Kenny MacAskill said 5,348 people were convicted in 2010-11, compared with 8,071 in 2006-07.
The Scottish Government data was revealed in a parliamentary answer to SNP MSP Stewart Maxwell.
Mr Maxwell said: "These are positive statistics and the trend is plain for all to see - fewer people are drink or drug-driving.
"People are taking on the message that it is completely unacceptable to drive whilst under the influence of alcohol or drugs.
"It is still concerning that a high number of people have still opted to get behind the wheel whilst under the influence, posing a danger to other innocent road users.
"But these figures are testament to the hard work of our police officers who are helping make our roads safer by taking a tough stance on drink-drug drivers."
The Justice Secretary has said proposals to lower the limit from 80mg of alcohol per 100ml of blood to 50mg will be brought forward later this year "with a view to the change taking effect as soon as possible".
Mr Maxwell said he is backing the move to lower drink-drive limits by a third, bringing them into line with most of Europe.
He said: "Any measure that will make our roads safer is to be welcomed. Drink-driving is blamed for 39 deaths and 170 serious injuries a year on Scotland's roads. That is why the SNP supports moves to lower drink-drive limits."