Changes made by Regulation (EU) No 642/2013 concerning the authorisation of niacin and niacinamide as feed additives for all…
EU Regulation No 642/2013
No changes made by Regulation (EU) No 642/2013 concerning the authorisation of niacin and niacinamide as feed additives for all… are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.