MIL-STD-2045/44500, DEPARTMENT OF DEFENSE INTERFACE STANDARD: TACTICAL COMMUNICATIONS PROTOCOL 2 (TACO2) FOR THE NATIONAL IMAGERY TRANSMISSION FORMAT STANDARD (18 JUN 1993)., This document establishes the requirements for the TActical COmmunications protocol 2 (TACO2), part of the National Imagery Transmission Format Standards (NITFS). National Imagery Transmission Format (NITF) is a standard format for transmitting digital imagery and imagery-related products among members of the Intelligence Community, and TACO2 is a protocol suite that may be used for that transmission. It includes requirements for Forward Error Correction (FEC), which is necessary to ensure interoperability and to promote commonality among subsystems that comply with NITFS.