scope:

The purpose of this handbook is to identify each service's primary repository organizational concept, type of data available, and address information (including DODAAC) and EDRS control activity code).

It is the responsibility of all personnel that use engineering data to obey appropriate handling, storage, distribution, and disposal controls; particularly, if the data are marked with a restrictive legend. Data marked with a restrictive legend must be safeguarded against release or access to unauthorized personnel (Government and non-Government).