scope:

Purpose. In accordance with (IAW) references a through s, this instruction establishes policy to achieve and maintain interoperability among those Department of Defense (DoD) information technology (IT) and national security systems (NSS) that implement tactical data links (TDL). Policies outlined in this instruction are focused on achieving interoperability through the standardization of message protocols, format, content, implementation, and documentation. IAW reference a, this instruction establishes procedures for the development, review, and validation of IT and NSS TDL message standards based on compatibility, interoperability, and integration requirements. It also establishes procedures for ensuring compliance through joint interoperability certification and program review. As directed by reference b, it establishes procedures for the validation of interface standards and compatibility requirements for TDL message protocol format and content. Applicable TDL-related standards are found in Enclosure B.

Applicability. This instruction applies to the Joint Staff (JS), Combatant Commands (CCMDs), Military Departments, and DoD Agencies and activities. It is also recommended for other Federal Departments implementing TDLs. The Joint Multi-Tactical Data Link Standards Working Group (JMSWG) Terms of Reference (reference c) and the Joint Multi-Tactical Data Link Configuration Control Board (JMTCCB) Terms of Reference (reference d) establish TDL configuration management procedures.