Immigration Rules: Supported Accommodation

My Lords, in preparation for this question, I contacted the Refugee Council to hear its concerns about the changes. It sent a few questions and I will ask the Minister two of them. First, why was this major and fundamental change announced with zero consultation with stakeholders, including local authorities and the asylum sector? Secondly, the change is due to come in on 1 January, but the accompanying guidance on its implementation has still not been published. Given that this is just over two weeks away, and happening over Christmas, when will the guidance be published?