Question to the Department for Environment, Food and Rural Affairs:

To ask Her Majesty's Government what consultations, if any, they plan to hold on measures to control air pollution from (1) small combustion plants, and (2) non-road mobile machinery.

(1) In the Clean Air Strategy, published in 2019, we committed to review the regulatory gap between the current Ecodesign and medium combustion plant regulations to tackle emissions from plants in the 500kW to 1MW thermal input range. We are considering the case for tighter emissions standards for medium combustion plants and generators. We are reviewing the evidence and considering policy options for these sources of emissions. A consultation will be conducted in due course.

(2) Defra recently completed a research project aimed to improve the evidence base on emissions from non-road mobile machinery. We are addressing some remaining evidence gaps. Depending on the policy options being considered, we will consult with stakeholders and the public as appropriate.