Building Energy Codes and Other Mandatory Policies Applies to Existing Buildings

Many countries are exploring potential new or expanded policies to improve existing building energy performance in response to the challenge of limiting climate change.

The International Energy Agency (IEA) Energy in Buildings and Communities (EBC) Technology Collaboration Programme Building Energy Codes Working Group (BECWG) commissioned a review of building energy codes and other mandatory regulatory instruments applied to existing buildings in member economies.

This report synthesizes the experience to date with two major types of policies: building energy codes and building energy performance standards.