In return for financial support from the Welsh Government, bus companies will need to commit to continue to provide a timetabled service and all NHS staff will receive free travel.
Am y gefnogaeth ariannol gan Lywodraeth Cymru, bydd rhaid i gwmnïau bysiau ymrwymo i barhau i ddarparu gwasanaeth amserlen a bydd staff y GIG i gyd yn cael teithio am ddim.