# The Environmental Authorisations (Scotland) Regulations 2018, Paragraph 27: Emission limit values for NOx for combustion plants using solid or liquid fuels (except gas turbines and gas engines)


Emission limit values (mg/Nm3) for NOx for combustion plants using solid or liquid fuels with the exception of gas turbines and gas engines are as set out in Table 9—
Table 9
Total rated thermal input (MW)
Coal and lignite and other solid fuels
Biomass and peat
Liquid fuels
50-100
300
400 in case of pulverised
lignite combustion
250
300
100-300
200
200
150
>300
150
200 in case of pulverised
lignite combustion
150
100

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Source: https://www.legislation.gov.uk/ssi/2018/219/schedule/21/paragraph/27 (the official version)
Page: https://openlegislation.uk/environmental-authorisations-scotland-regulations-2018/schedule-21/paragraph-27
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.