High Quality Content by WIKIPEDIA articles! In NATO a Standardization Agreement (STANAG) defines processes, procedures, terms, and conditions for common military or technical procedures or equipment between the member countries of the alliance. Each NATO state ratifies a STANAG and implements it within their own military. The purpose is to provide common operational and administrative procedures and logistics, so one member nation`s military may use the stores and support of another member`s military. STANAGs also form the basis for technical interoperability between a wide variety of communication and information (CIS) systems essential for NATO and Allied operations.