Contaminated earth from a rail-twinning project on the Luxembourg-Petange line produced a recent jump in exports. The Environment Administration works with the Customs and Excise Administration to detect illegal waste transfers. In 2008, written warnings were issued to 24 firms found to be non-compliant during these inspections. Regulation EC/1907/2006, in force since 2007, makes industry responsible for managing the risks that chemicals may pose for health and the environment.