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Non-road mobile machinery (NRMM) certification

Our independent certification for Non-Road Mobile Machinery (NRMM) is the only one of its kind in the UK. It certifies the emissions reduction systems that can be retrofitted to NRMM (or construction machinery) to allow them be used in areas which have emissions restrictions. 

Energy Saving Trust Endorsed Product LogoGaining NRMM certification offers the assurance that your retrofit equipment meets the requirements of local authority air quality policy or the environmental requirements of certain development and construction projects such as Crossrail and HS2. This makes your equipment highly desirable to buyers of retrofit equipment or enforcement authorities responsible for checking compliance on such projects.

Our EST Endorsed Product brandmark visibly identifies all EST certified systems, so buyers and enforcement authorities can use the EST Register to choose a system or check that a system is compliant. 

Examples of NRMM include: 

  • excavators
  • bulldozers
  • generators
  • forklifts 
  • mobile cranes

What are the additional benefits of NRMM certification?

  • Increased awareness of your equipment and potential for increased sales
    (All NRMM certified products are promoted to supply chain and construction professionals via the EST Register and regular news bulletin*) 
  • Assurance for buyers and enforcement authorities on the energy performance of products – use of the EST Endorsed Product brandmark in your marketing demonstrates that retrofit equipment has been checked by a specialist energy organisation
  • Competitive advantage gained by having your systems quality assured by a trusted third party
  • Potential for increased loyalty from buyers and referrals from authorities as you show commitment to environmental awareness and sustainability.

*EST Register has over 6,700 monthly visitors; EST Register bulletin is circulated to an influential audience of housing, construction and supply chain professionals.

Approved manufacturers and devices (TEST)

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.

Company information Product Approved vehicle applications

Eminox Ltd
(Gainsborough, UK)


Tel: 01427 810088

Eminox SCRT®

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

Single Deck Buses

  • Scania DC901 9.0 litre Euro III powered 
  • Cummins ISBe 5.9 litre Euro III powered

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

Next steps

Want to find out more about NRMM certification?

Call 020 7654 2424 to tell us about your retrofit systems and equipment.

Email our team