Ventilation system in the new building

Hello, it depends on the insulation values of the new building and how airtight it is. When entering the passive house range, a controlled residential ventilation system is indispensable. Moreover, according to the new Energy Saving Ordinance, a controlled residential ventilation system is mandatory

Where do you read that from? I have read through the Energy Saving Ordinance 2009; it does say how ventilation can be credited towards energy demand requirements and how the ventilation is to be carried out if there is one. But that a ventilation system MUST be installed, I cannot see. A § with paragraph and quotation would be helpful.