The requirements imposed by the International Travel Regulations are subject to exceptions, and certain categories of person are exempt from having to comply with certain requirements.
Mae’r gofynion a osodir gan y Rheoliadau Teithio Rhyngwladol yn ddarostyngedig i eithriadau, ac mae categorïau penodol o berson wedi eu hesemptio rhag gorfod cydymffurfio â gofynion penodol.