NMa Guidelines NMa Best Practices on the Conduct of Concentration Control Proceedings, 9 January 2009 NMa Policy rules on administrative fines under transport legislation, 21 September 2009  Policy rules of the Minister on Economic Affairs fines, 11 September 2009 Leniency Guidelines, September 2009  Guidelines on Cooperation between Undertakings, April 2008   Procedure in relation to the Inspection and Copying of Digital Data and Documents 2007, 12 December 2007 NMa Fining Code 2007 AMEW, 10 October 2007 Amicus Curiae Guidelines, 23 September 2004