The circumstances referred to in paragraphs A.2(1)(a) and B.5 are—
(a)that no other suitable building or structure, 400 metres or more from the curtilage of a protected building, is available to accommodate the livestock; and
(b)(i)that the need to accommodate the livestock arises from—
(aa)quarantine requirements; or
(bb)an emergency due to another building or structure in which the livestock could otherwise be accommodated being unavailable because it has been damaged or destroyed by fire, flood or storm; or
(ii)in the case of animals normally kept out of doors, they require temporary accommodation in a building or other structure—
(aa)because they are sick or giving birth or newly born; or
(bb)to provide shelter against extreme weather conditions.