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Testing & Accreditation (LCEB Certification)

Please note: The LCEB accreditation scheme has now been superseded by the Low Emission Bus accreditation scheme which compares GHG savings with conventional Euro V diesel buses rather than Euro III buses for the LCEB scheme.

This section provides a description of the testing and accreditation of LCEBs and the documentation required to support this process.

LCEB Certificates

In order to identify whether a bus is a low carbon emission bus, and therefore eligible for the LCEB incentives, the vehicle's manufacture will issue the bus operator with a certificate, certifying the vehicle as a LCEB. This certificate will be based upon an independently witnessed emission test of a vehicle of the same type, using the same fuel and energy management system. While every bus will be issued with a certificate only one bus of that type will be required to be tested. Further details on the LCEB certificate are provided in the section on LCEB Certificates.

Testing and Accreditation

The procedures for testing and accreditation of LCEBs are based upon a type approval process. In order to be accredited as a Low Carbon Emission Bus, vehicles must have well-to-wheel GHG emissions equal to or less than the LCEB target for their given maximum passenger capacity. To determine whether a bus meets the target requires a whole vehicle emission test, to determine the tank-to-wheel GHG emissions. These are then used to determine the well-to-wheel GHG emissions. Further details on the accreditation process and the testing procedures can be found in the section on testing and accreditation procedures.

Bus Test Cycle

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The MLTB test cycle was developed by Transport for London and Millbrook Proving Ground Ltd and has been released into the public domain. The test cycle was generated using real time data collected from a London Bus working on Route 159 from Streatham to Baker Street via Whitehall and Oxford Street