Notarized translation is a type of official Japanese translation that has been authenticated by a Notary Public. 

There is, however, often confusion about what is actually notarized. Rather than verifying translation accuracy (since notaries are not linguists), they authenticate either a translator’s signed Statement regarding translation accuracy or the authenticity of the original documents to be used for translation. In Japan, notarized translation at a Notary Public Office can be done in two ways: either by notarizing the Statement for translated documents (if they provide English notarization) or by notarizing the original document first and then translating both it and the notarization statement which is in Japanese.

Notarization is expensive; therefore, in order to avoid unnecessary costs and complications it’s essential to verify requirements with the official authority that will evaluate the documents to save time, money, and effort.