Implementing Regulations on use of energy in buildings. Country/Territory Switzerland Territorial subdivision Obwalden Document type Regulation Date 2011 Source FAO, FAOLEX Subject Energy, Land & soil Keyword Energy conservation/energy production Land-use planning Geographical area Alps, Europe, Europe and Central Asia, North-East Atlantic, Western Europe Entry into force notes The present Regulations enter into force on 1 June 2011. Abstract The present Regulations implement the Building Law of 12 June 1994. In particular, the Regulations lay down provisions relating to the sustainable use of energy in buildings. The text consists of 6 articles. Full text German Website www.ow.ch