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.