As it is foreseen that harmonised rules on congestion management will pass the comitology procedure in 2012 the Commission establishes for the development of harmonised gas rules this annual priority list for 2013:
capacity allocation (adoption under comitology procedure),
balancing rules including network-related rules on nomination procedure, rules for imbalance charges and rules for operational balancing between transmission system operators' systems (finalise network code and start adoption process),
interoperability and data exchange rules,
rules regarding harmonised transmission tariff structures.