A more thorough explanation:

An attested copy is a duplicate of an original document that has been certified as an exact reproduction by the officer responsible for issuing or keeping the original. It is also known as a certified copy, exemplified copy, or verified copy.

For example, if you need a copy of your birth certificate for a passport application, you can request an attested copy from the vital records office. The officer will compare the copy to the original and certify that it is a true and accurate reproduction.

In legal proceedings, an attested copy may be admissible as evidence to prove the contents of a writing. This means that if the original document is not available, a certified copy can be used instead.

Overall, an attested copy provides a reliable and official record of important documents, such as birth certificates, marriage licenses, and court orders.