Action was needed to encourage schoolchildren to wear face coverings on public transport after classes returned in August, MSPs have been told.
Transport Secretary Michael Matheson said there had been an “issue” with this, as he spoke about the “challenges around compliance”.
Coronavirus regulations mean all those travelling on buses, trains, ferries and taxis are expected wear face coverings, unless there is a medical reason why they cannot.
Mr Matheson told MSPs on Holyrood’s Rural Economy and Connectivity Committee that while compliance with the rules had generally been high, there had been “issues”.
Asked about the use of face coverings on public transport, he said: “Compliance as it stands at the moment has been very high.
“At the low end it would be about 80% but on average it is sitting at 90% to 95% compliance.
“There have been points where there have been challenges around compliance with that in some areas, and where that has been identified both ScotRail and British Transport Police and the rail network have taken proactive action to address the issues, to encourage people at particular stations, which has been an issue since the schools have gone back, to encourage young people in particular to make sure they have face coverings when they are using trains.
“They have been engaging directly with local authorities and education departments to make sure that message is emphasised through schools.”