The Data Classification Policy and supporting documents are integral to the CMMC effort as they provide a framework for identifying, handling, and securing data based on its sensitivity and importance. This collection of documents helps to identify what constitutes sensitive information such as FCI and CUI that should be protected under the Data Classification Policy and prescribes appropriate handling and protection measures in accordance with CMMC requirements. It categorizes data types and outlines handling procedures for each category and provides a structured approach to managing and protecting data based on its sensitivity.