Proposals to cut transport for sixth formers in Merthyr Tydfil who go to their closest Welsh-medium school in Rhondda Cynon Taf, would lead to serious disruption for pupils and could lead to teachers being made redundant.
Over 90 sixth form pupils travel from Merthyr to Ysgol Rhydywaun every day. But there are now plans out for consultation that could bring the service to an end.
The headteacher says it would decimate their school.
Hannah Thomas reports.