Short Answer 
Derivative classification is the process of determining the classification of new documents based on previously classified ones, ensuring the integrity of sensitive information. It involves identifying an authorized source document and applying the “contained in” concept to incorporate information verbatim, maintaining the original classification level for security.
Step 1: Understand Derivative Classification
Derivative classification refers to the process of determining the classification of information based on previously classified documents. It is crucial when creating new documents derived from existing ones. This helps to maintain the integrity and security of sensitive information.
Step 2: Identify the Source Document
The information that will guide the derivative classification must come from an *authorized document*. You will need to locate the original source document from which information will be drawn. This involves examining the content and classification level of the source document to establish the parameters for the new document.
Step 3: Apply the “Contained In” Concept
When incorporating information from the source document into the new document, the process relies on the concept of being “*contained in*”. This means that the information is taken verbatim from the source without any interpretation or additional explanation needed. The new document maintains the classification of the original source, ensuring proper security protocols are followed.