There is one that says it's fine to bring it in. What we're finding, though, is that spent fowl is coming in, as you rightly point out, in a volume that says it's a lot more than just chicken nuggets, soups, and so on, where it was originally destined to go.
On dit que l'importation est autorisée, mais on constate que les volumes d'importation de volaille de réforme dépassent largement ce à quoi on s'attendrait pour l'usage privé à l'origine, soit les croquettes de poulet, la soupe et autres.