PLAB is accepted as a proof of competence for practicing as a junior doctor, at the level of an MBBS , in many countries, including but not limited to :
Australia - Provided you've 2 years UK experience
New Zealand - Provided you've 2 years UK experience
Many other Commonwealth countries also exempt you from their own licensing exams if you've passed both parts of the PLAB exam!
Surgeon in the UK | Avid Reader of Nonsense | Bone Mechanic
Source: Quora Digest