Division 3.5 With a view to promoting fair and efficient competition and cross-border trade, coordination between TSOs within the regions set out in 3.2. above shall include all the steps from capacity calculation and optimisation of allocation to secure operation of the network, with clear assignments of responsibility. Such coordination shall include, in particular:

Use of a common transmission model dealing efficiently with interdependent physical loop-flows and having regard to discrepancies between physical and commercial flows,

Allocation and nomination of capacity to deal efficiently with interdependent physical loop-flows,

Identical obligations on capacity holders to provide information on their intended use of the capacity, i.e. nomination of capacity (for explicit auctions),

Identical timeframes and closing times,

Identical structure for the allocation of capacity among different timeframes (e.g. 1 day, 3 hours, 1 week, etc.) and in terms of blocks of capacity sold (amount of power in MW, MWh, etc.),

Consistent contractual framework with market participants,

Verification of flows to comply with the network security requirements for operational planning and for real-time operation,

Accounting and settlement of congestion management actions.