Decision on the proposal for a Council Decision on the position of the European Community on the draft Regulation of the United Nations Economic Commission for Europe concerning the approval of specific components of motor vehicles using compressed natural gas (CNG) in their propulsion systems and of vehicles with regard to the installation of specific components of an approved type for the use of compressed natural gas (CNG) in their propulsion systems (12833/98 - COM(98)0565 C4-0097/99 98/0297(AVC)) (Assent procedure)