It will not always be possible to procure equipment that is compliant with the NRMM standards for London. If the required machinery is not available the next best option is to install approved abatement equipment (retrofitting).
A lsit of approved abatement equipment for use in the NRMM Low Emission Zone can be found on the Energy Savings Trust website If you are a retrofit manufacturer and you would like to get your equipment approved you should use this page to register with the EST.
Retrofitting abatement equipment does not change the emissions stage of the base engine, nor does it remove the need to apply for an exemption. If you have used retrofit you should fill in the register with the details of the base engine and enter the retrofit details in the relevant boxes.
Where you have used approved retrofit an exemption will normally be granted without the need to provide additional information.
If retrofit options are not possible, or the machinery is needed to fit a genuine emergency, then it is possible to apply for an exemption for individual machines. Exemptions are granted at the discretion of the GLA and you will need to demonstrate that you have exhausted all other options before an exemption is granted.
The full exemption and retrofit policy can be downloaded from the following link:
From 22nd May to 3rd July 2015 the Greater London Authority (GLA) consulted on an exemptions policy to the new Non Road Mobile Machinery Low Emission Zone. During the consultation 27 responses were received. The GLA commissioned AMEC to analyse all stakeholder responses received during the consultation period, which is below. Using these responses the GLA has finalised the exemptions policy which is also published below.
The NRMM Exemption Policy Summary of Proposals and Consultation questions document provides further information on how the scheme will be enforced, including a transitional introductory period for the first 6 months, as well as answers to frequently asked questions, such as retrofitting abatement technology.
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