Directive 2001/27 - Adaptation of to technical progress Council Directive 88/77/EEC on the approximation of the laws of the Member States relating to measures to be taken against the emission of gaseous and particulate pollutants from compression-ignition engines for use in vehicles, and the emission of gaseous pollutants from positive-ignition engines fuelled with natural gas or liquefied petroleum gas for use in vehicles - Main contents

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Commission Directive 2001/27/EC of 10 April 2001 adapting to technical progress Council Directive 88/77/EEC on the approximation of the laws of the Member States relating to measures to be taken against the emission of gaseous and particulate pollutants from compression-ignition engines for use in vehicles, and the emission of gaseous pollutants from positive-ignition engines fuelled with natural gas or liquefied petroleum gas for use in vehicles (Text with EEA relevance)

Official Journal L 107 , 18/04/2001 P. 0010 - 0023

Commission Directive 2001/27/EC

of 10 April 2001

adapting to technical progress Council Directive 88/77/EEC on the approximation of the laws of the Member States relating to measures to be taken against the emission of gaseous and particulate pollutants from compression-ignition engines for use in vehicles, and the emission of gaseous pollutants from positive-ignition engines fuelled with natural gas or liquefied petroleum gas for use in vehicles

(Text with EEA relevance)

THE COMMISSION OF THE EUROPEAN COMMUNITIES,

Having regard to the Treaty establishing the European Community,

Having regard to Council Directive 88/77/EEC of 3 December 1987 on the approximation of the laws of the Member States relating to the measures to be taken against the emission of gaseous and particulate pollutants from compression-ignition engines for use in vehicles, and the emission of gaseous pollutants from positive-ignition engines fuelled with natural gas or liquefied petroleum gas for use in vehicles(1), as last amended by Directive 1999/96/EC of the European Parliament and of the Council(2), and in particular Article 4 thereof,

Whereas:

• (1) 

  Directive 88/77/EEC is one of the separate directives under the type-approval procedure laid down by Council Directive 70/156/EEC of 6 February 1970 on the approximation of the laws of the Member States relating to the type-approval of motor vehicles and their trailers(3), as last amended by Directive 2000/40/EC of the European Parliament and of the Council(4).

• (2) 

  Directive 1999/96/EC provided for new emission test cycles and prescriptions to prevent the use of defeat device and/or irrational emissions control strategy. It is now appropriate to strengthen those requirements and to provide a tool for authorities to determine whether engines are using defeat devices and/or irrational emissions control strategies under normal conditions of use to manipulate engine performance at the expense of emissions control.

• (3) 

  It is accepted that gas vehicles can provide a realistic and environmentally beneficial alternative to diesel vehicles in terms of air pollutant emissions. While they are able to achieve the emission limits mandated in Directive 1999/96/EC, certain gas engines, by virtue of their design, have difficulty complying with the test cycle validity criteria with respect to the accuracy of the gas engine response to the changes in speed, torque and power demanded by the European Transient Cycle (ETC). To avoid setting a gas engine design requirement by respecting the design freedom philosophy of the type-approval system and to help stimulate the development of the market for gas-fuelled vehicles, it is appropriate to allow, for gas engines only, a modification of the statistical criteria which assesses the validity of the type-approval test. The development of gas engine technology should be reviewed in the future to confirm or modify this allowance for gas engines.

• (4) 

  The reference fuels necessary for testing engines that use natural gas should be re-defined to provide for the broadest coverage with regard to the λ-shift factor (Sλ) of gas fuels of various compositions which are available on the market. The reference fuels necessary for testing engines that use liquefied petroleum gas should also be reviewed to similarly provide for the broadest coverage of fuels...

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