Kent County Council has said that it will save around £7m by capping free bus travel for thousands of students.
The move, which will cost many families hundreds of pounds, will limit the journeys taken by 11 to 16 year olds to £350 worth of travel. For older students, passes will be capped at £250.
The Kent Freedom Pass was launched in 2006 and costs the council around £13.5m every year.
Opposition councillors have said that some students with long journeys to school and college will be penalised by the changes.