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

To ask Her Majesty's Government, further to the Written Answer by Lord Goldsmith of Richmond Park on 6 December 2021 (HL4318), when they plan to conduct consultations on measures to control air pollution from (1) small combustion plants, and (2) non-road mobile machinery.

(1) As set out in the Clean Air Strategy, we are considering closing 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. Alongside this we are considering the case for tighter emissions standards for medium combustion plants and generators. We are continuing to assess the evidence and develop policy options in these areas. A consultation will be conducted in due course.

(2) Defra recently completed a research project to improve the evidence base on emissions from non-road mobile machinery. We are addressing some remaining evidence gaps. We are considering policy options and will consult with stakeholders and the public as appropriate in due course.