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Clean Vehicle Retrofit Accreditation Scheme (CVRAS)

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What is the Clean Vehicle Retrofit Accreditation Scheme (CVRAS)?

The CVRAS is a robust certification scheme for manufacturers of retrofit emissions reduction technology that will enable Clean Air Zone (CAZ) compliance of legacy fleet vehicles. This certification scheme supports the operation of Clean Air Zones and addresses the air pollution emissions from buses, coaches, heavy goods vehicles, mini-buses, taxis and vans.

Van driving through countryside

Approved manufacturers and devices

CVRAS approved companies and emission reduction systems. 

This listing contains details of companies and their systems approved under the scheme requirements along with their contact information and the categories of vehicle to which their systems can be applied in order to make the vehicle Clean Air Zone compliant.

Contact our Transport Certification team via email or call +44 (0)20 7222 0101 for more details.

CVRAS approved companies

Eminox Ltd
(Gainsborough, UK)

enquiries@eminox.com
Tel: +44(0)1427 810088

 

 

 

 

 

 

 

 

 

Technology
Retrofit exhaust after-treatment system (SCRT)

Product
Eminox SCRT®

Application status
Approved

Vehicle Category
Buses

Approved vehicle applications
Double Deck Buses

  • Cummins ISBe 6.7 litre Euro IV & V powered
  • Volvo D5F 4.8 litre Euro IV & V powered
  • Volvo D9B 9.4 litre Euro IV & V powered
  • Scania DC901 9.0 litre Euro III, IV and V powered

Single Deck Buses

  • Scania DC901 9.0 litre Euro III, IV and V powered
  • Cummins ISBe 5.9 litre Euro III powered
  • Cummins ISBe 4.5 litre Euro IV and V powered

Amminex Emissions Technology A/S
(Soborg, Denmark)

 

 

 

 

 

 

 

 

 

Technology
Retrofit exhaust after-treatment system 

Product
Eminox DPF+SCR with Amminex ASDS

Application status
Company application accepted
Approval in progress
Approval of technology in combination with Eminox DPF+SCR in progress  

Vehicle Category
Buses

Approved vehicle applications
Double Deck Buses

  • Volvo D9B 9.4 litre Euro IV & V powered

    Single Deck Buses

  • Cummins ISBe 4.5 litre Euro IV and V powered

HJS Emission Technology GmbH & Co KG 
(Menden, Germany)

UK Representation:
HJS UK Ltd (Bracknell)

mark.cooper@hjs.com
Tel: +44(0)1344 566050

Technology
Retrofit exhaust after-treatment system (SCRT)

Product
HJS SCRT 35,36,40, 41 42, 44

Application status
Approved

Vehicle Category
Buses

Approved vehicle applications
Double Deck Buses

  • Cummins ISBe 6.7 litre Euro IV & V powered
  • Cummins ISBe 4.5 litre Euro IV & V powered hybrid
  • Volvo D5F Euro IV & V powered
  • Volvo D9B 9.4litre Euro IV & V powered

Single Deck Buses

  • Cummins ISBe 4.5litre Euro IV & V powered

Baumot AG
(Konigswinter, Germany)

UK Representation:
Baumot UK Ltd (Towester)

enquiries@baumot.co.uk
Tel: +44 (0)1327 226930

Technology
Retrofit exhaust after-treatment system (SCRT)

Product
Baumot BNOx

Application status
Approved

Vehicle Category
Buses

Approved vehicle applications
Double Deck Buses

  • Cummins ISBe 6.7 litre Euro IV & V powered
  • Scania DC9 9.3 litre Euro III, IV and V powered

Single Deck Buses

  • Cummins ISBe 4.5litre Euro IV & V powered
  • Cummins ISBe 6.7 litre Euro IV & V poweredm 
  • Scania DC9 9.3 litre Euro III, IV and V powered

Proventia Oy
(Oulunsalo, Finland)

UK Representation:
Excalibre Technologies Ltd (Gloucestershire)

sales@excalibretech.com
Tel: +44 (0)1594 887414

Technology
Retrofit exhaust after-treatment system (SCRT)

Product
Proventia NOxBUSTER City™

Application status
Approved

Vehicle Category
Buses

Approved vehicle applications
Double Deck Buses

  • Cummins ISBe 4.5 litre Euro V (hybrid)
  • Volvo D5F 4.8 litre Euro V Hybrid
  • Volvo D9B 9.4 litre Euro IV & V powered
  • Cummins ISBe 6.7 litre Euro IV & V (this bus/engine application approval pending)

Single Deck Buses

  • Cummins ISBe 4.5 litre Euro IV & V
  • Cummins ISBe 4.0 litre Euro III
  • Cummins ISBe 6.7 litre Euro IV & V (this bus/engine application approval pending)

GreenUrban Technologies Ltd
(Penrith, UK)

 

info@greenurban.co.uk
Tel: +44(0)1768 210111

 

 

 

 

 

Technology
Retrofit exhaust after-treatment system (SCRT)

Product
ecoNOxt system

Application status
Approved

Vehicle Category
Buses

Approved vehicle applications
Double Deck Buses

  • Cummins ISBe 6.7 litre Euro IV & V powered

Single Deck Buses

  • Cummins ISBe 6.7 litre Euro IV & V powered

Cummins Engine Company Ltd
(Darlington, UK)

alex.waller@cummins.com
Tel: +44 1327 886 364

Technology
Re-power

Product
Full Cummins Euro VI engine + aftertreatment system

Application status
Application submitted and accepted
Approval in progress

Vehicle Category
Buses

Approved vehicle applications
Double Deck Buses

  • To be advised

Single Deck Buses

  • To be advised

Magnetic Systems Technology Ltd
(Sheffield, UK)

s.buckley@magtec.co.uk
Tel: +44 (0)1709 464120

Technology
Re-power

Product
MagTec electric vehicle drivetrain systems

Application status
Application submitted and accepted
Approval in progress

Vehicle Category
Buses

Approved vehicle applications
Double Deck Buses

  • To be advised

Single Deck Buses

  • To be advised

Vantage Power Ltd
(Greenford, UK)

general@vantage-power.com
Tel: +44(0)208 8130 850

Technology
Re-power

Product
Vantage Power B320 Euro VI hybrid system (ft. Cummins ISBe 4.5 Euro VIc)

Application status
Approval in progress

Vehicle Category
Buses

Approved vehicle applications
Double Deck Buses

  • To be advised

Single Deck Buses

  • To be advised

Vehicle Repowering Solutions Ltd (VRS)
(Alcester, UK)

info@vehiclerepowering.com
Tel:+44(0) 7432 515 231

Technology
Re-power and LPG conversion

Product
GasCab

Application status

Company application accepted
Approval in progress
Technology approved

Vehicle Category
Taxi (Black Cab)

Approved vehicle applications

  • Conversion of TX1, TX2 and TX4

Getting certified

Manufacturers of abatement equipment need to get their equipment accredited by the Energy Saving Trust before it can be added to the list of approved devices available to vehicle and Clean Air Zone (CAZ) scheme operators. This ensures that approved filters meet minimum technical standards and that vehicles fitting these approved emission reduction systems meet the national CAZ emissions standards.

Potential applicants should be aware that emission reduction systems and technologies will be required to demonstrate robust technical performance in order to be eligible for approval and manufacturers are required to operate quality management systems to certified standards, for example, ISO 9001. Please see the scheme documentation below for further details.

Scheme documentation and information

Contact our experts

Speak with our Transport Certification team via email or call +44 (0)20 7222 0101 for more details.

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Contact our team

For more information on the Clean Vehicle Retrofit Accreditation Scheme (CVRAS), please contact our Transport Certification experts.