Empty trucks driving every 4 weeks in order to return to country of registration will raise to 3% of the EU's harmful emissions from international freight transport by 3 percent. This was what Bulgarian Transport Minister Rosen Zhelyazkov said in Brussels at the EU Council meeting. Transport is a key sector for the Bulgarian economy. The number of registered heavy vehicles is 25 800 with an average age of 3 years. Imagine these trucks crossing Europe and traveling more than 2000 km in vain and empty because of a desire to impose rules that are disproportionate and discriminatory to the peripheral Member States, Zhelezkov told his colleagues.