The European Commission published a technical regulation September 21 to amend guidelines on the monitoring and reporting of greenhouse gas emissions by participants in the Emissions Trading System. The regulation amends a 2007 rule that established consolidated guidelines for monitoring and reporting emissions, taking into account the first years of the system, which began in 2005. The production of bulk organic chemicals and the processing of primary aluminum will be added in 2013, and the definition of combustion will be extended.