Paid staff of the State Emergency Service (SES) from across Victoria walked off the job on Friday for 24-hours over a pay dispute.
Around 40 SES operational workers stopped work after negotiations broke down.
The State Government has offered a 2.5 per cent pay rise.
But the Community and Public Sector Union (CPSU) says workers want the same pay and conditions as the CFA which is the equivalent of a 30 per cent rise.
The staff have passed a motion of no-confidence in the chief executive officer, the board and the SES executive and they are calling for Emergency Services Minister Peter Ryan to intervene.
The SES says volunteers will remain on call throughout the strike.