You will have to apply to vote by proxy if the election or referendum is less that 2 weeks away and you have not made arrangements yet.
Bydd yn rhaid i chi wneud cais i bleidleisio drwy ddirprwy os oes llai na 2 wythnos tan yr etholiad neu'r refferendwm ac nad ydych wedi gwneud trefniadau eto.