Brussels-Capital Region Passive Standard Directive
From PassREg - Solutions Open Source
On July 12, 2009 the Brussels government passed an order imposing the passive standard on all regional new public buildings by 2010, and on May 3, 2011 adopted new energy target regulation for all new construction (housing, offices and schools) by 2015.
The decrees:
More information via Leefmilieu Brussel
also read the report by the Centre for the Built Environment (University of East Anglia, UK): Lessons learnt from the Belgian Passivhaus experience