SEETO Comprehensive Network is a multimodal regional transport network defined under the MoU. It is a commonly agreed main and ancillary transport infrastructure in the South East Europe (SEE) which is the base for the implementation of the transport investment programmes.

Within the revision process of the TEN-T network, the SEETO Comprehensive Network maps were included in the TEN-T Guidelines, where they appeared as indicative, and moreover, the SEETO Comprehensive Network was defined as TEN-T Comprehensive Network in the South East Europe, and interlinks were determined. In this way, a clear perspective is given to become fully a part of the wider TEN-T network through Regional Participants accession process.