# Commission Implementing Decision of 12 December 2011 laying down rules for Directives 2004/107/EC and 2008/50/EC of the European Parliament and of the Council as regards the reciprocal exchange of information and reporting on ambient air quality (notified under document C(2011) 9068) (2011/850/EU), Division (2): Number of digits and rounding

Extent: E+W+S+N.I.

Data should be made available with the same number of digits as they are used in the monitoring network.
Rounding has to be the very last step of any calculation, i.e. immediately before comparing the result with the environmental objective and has to be done only once. By default the system will perform rounding of the data made available where appropriate following the commercial rounding rules.

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Source: https://www.legislation.gov.uk/eudn/2011/850/annex/I/division/A/division/2 (the official version)
Page: https://openlegislation.uk/eu-decision-2011-850/annex-I/division-A/division-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.