Excuse me, what is the difference between the permanent preservation period of administrative official documents, 30 years and 10 years? How to deal with paper documents that don't need to be saved? D

Excuse me, what is the difference between the permanent preservation period of administrative official documents, 30 years and 10 years? How to deal with paper documents that don't need to be saved? Destroy? Documents are classified into top secret documents, confidential documents, secret documents, public documents and publicity materials.

Paper documents that do not have the value of filing and checking can be treated as "invalid retention" and "destroyed" after being identified by the director of the office and the person in charge of the issuing department.