a little rag doll for a little girl

I made this rag doll for the little girl that I supported for the whole of last year, I think it was well received :)  I am getting the hang of this pattern after making two for my nieces last Christmas, I would like to produce a few more of these to sell in my shop, but always feel a bit worried about making things for children - are they any regulations you must follow to ensure that they are safe?  Any information would be greatly appreciated!