Changes made by Regulation (EU) 2016/2261 concerning the authorisation of copper(I) oxide as a feed additive for all animal…
EU Regulation 2016/2261
No changes made by Regulation (EU) 2016/2261 concerning the authorisation of copper(I) oxide as a feed additive for all animal… are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.