There is no higher authority.

“The Doctor: Rose... before I go, I just want to tell you: you were fantastic. A…”

“In the end I sort of though we created a companion who was so alive and dynamic…”

“...Something we once loved, and love now, in the shape of a book. Maybe eBooks …”

“Rose Tyler: The time war ends. Emperor Dalek: I will not die! I cannot diieee! …”