# Regulation (EC) No 1831/2003 of the European Parliament and of the Council of 22 September 2003 on additives for use in animal nutrition (Text with EEA relevance), Division 2: In the category ‘sensory additives’, the following functional groups are included:

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

(a) colourants:
(i) substances that add or restore colour in feedingstuffs;
(ii) substances which, when fed to animals, add colours to food of animal origin;
(iii) substances which favourably affect the colour of ornamental fish or birds;
(b) flavouring compounds: substances the inclusion of which in feedingstuffs increases feed smell or palatability.

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Source: https://www.legislation.gov.uk/eur/2003/1831/annex/I/division/2 (the official version)
Page: https://openlegislation.uk/eu-regulation-2003-1831/annex-I/division-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.