The two terms are not the same. Basically, they differ in sets of formal requirements that must be fulfilled in order to ensure that a foreign document will be accepted by the authorities of a given country. Confusion between the meaning of “sworn translation” and “certified translation” results from the fact that the former term is not officially recognized in certain countries, e.g., the UK, the USA or Australia; the latter is used there instead. In Poland, on the other hand, the two terms are frequently considered interchangeable.