Decisions 20.09.2012 ACER Decision 03-2012 on Framework Guidelines on Electricity Balancing Publications 27.07.2012 ACER Corporate Brochure in German Publications 27.07.2012 ACER Corporate Brochure in Slovene Publications 27.07.2012 ACER Corporate Brochure Decisions 26.07.2012 ACER Decision 02-2012 on Interoperability and Data Exchange Rules for European Gas Transmission Networks Decisions 26.06.2012 ACER Decision 01-2012 Relating to the Registration Format Pursuant to Article 9(3) of Regulation (EU) No 1227/2011 Decisions 06.02.2012 Director Decision 2012-06 on the Rules for the Functioning of the ACER Working Groups and repealing Director Decision 2011-002 and Director Decision 2011-009 Decisions 02.12.2011 ACER Decision 06-2011 on Framework Guidelines on Electricity System Operations Decisions 28.09.2011 Director Decision 2011-019 on Holidays for 2012 for ACER