Firefighters in Fife will begin the first of two periods of industrial action on Christmas Eve.
The action, which stops short of an all-out strike, is due to an ongoing dispute between the Fire Brigades Union and the UK Government over pensions.
The first period of industrial action, comprising a refusal to work voluntary overtime by firefighters and control room personnel, will take place between 7.00 p.m. and midnight on Tuesday, December 24.
The second period will consist of a refusal to work voluntary overtime by firefighters, and will not include personnel working in control room.
This will take place from 7.00 p.m. on Friday, December 27 and 7.00 p.m. on Sunday, December 29.
A spokesman for The Scottish Fire and Rescue Service said members of the public should continue to call 999 if there is an emergency as contingency arrangements will be in place.
Throughout the period of industrial action SFRS will continue to respond to all emergency calls.
Chief Officer Alasdair Hay said: “The industrial action being taken by the Fire Brigades Union relates to an on-going dispute between the FBU and the UK Government.
“This is not a dispute with the Scottish Fire and Rescue Service and we will continue to engage in constructive and positive dialogue with both the Fire Brigades Union and the Scottish Government in relation to the pension dispute.”