# The Passenger Car (Fuel Consumption and CO2 Emissions Information) Regulations 2001, Paragraph 4


The official specific emissions of CO2 shall be quoted to the nearest whole number in grams per kilometre (g/km) and all other numerical data shall be quoted to one decimal place.

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Source: https://www.legislation.gov.uk/uksi/2001/3523/schedule/4/paragraph/4 (the official version)
Page: https://openlegislation.uk/passenger-car-fuel-consumption-and-co2-emissions-information-regulations-2001/schedule-4/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.