Mae’r Rheoliadau Teithio Rhyngwladol yn darparu y gellir rhoi hysbysiad cosb benodedig mewn rhai amgylchiadau, gan gynnwys lle nad yw unigolion wedi cydymffurfio â’r gofyniad i hunanynysu. Bydd swm y gosb benodedig sy’n daladwy yn yr amgylchiadau hynny’n cael ei ddiwygio fel bod y swm sefydlog o £1000 yn cael ei ddisodli gyda graddfa sy’n dechrau ar £500 ar gyfer trosedd gyntaf.
The International Travel Regulations provide that fixed penalty notices may be issued in certain circumstances, including where there has been a failure to comply with the requirements to isolate. The amount of the fixed penalty that is payable in those circumstances will be amended so that the fixed sum of £1000 is replaced with a sliding scale starting at £500 for a first offence.