# The Animal Feed (Composition, Marketing and Use) (Wales) Regulations 2016, Regulation 14: Interpretation of this Part

Extent: E+W

In this Part—
(a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(b) “undesirable substance” (“sylwedd annymunol”) means any substance or product, not being a pathogenic agent, which is present in or on a feed and—
(i) constitutes a potential danger to human or animal health or to the environment, or
(ii) could adversely affect livestock production.

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Source: https://www.legislation.gov.uk/wsi/2016/386/regulation/14 (the official version)
Page: https://openlegislation.uk/animal-feed-composition-marketing-and-use-wales-regulations-2016/regulation-14
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.