Member States shall not permit foodstuffs for human consumption to be taken from test animals unless the competent authorities have established an appropriate withdrawal period. The withdrawal period shall either:

1. (a)

   be at least as laid down in Article 11(2), including, where appropriate, a safety factor reflecting the nature of the substance being tested; or

2. (b)

   if maximum residue limits have been established by the Community in accordance with Regulation (EEC) No 2377/90, ensure that this maximum limit will not be exceeded in foodstuffs.