a legally binding command or decision entered on the court record (as if issued by a court or judge); "a friend in New Mexico said that the order caused no trouble out there"
an administrative act issued in writing by a competent authority, by which of its very nature a privilege, dispensation or other favor is granted at someone's request
A rescript is a document that is issued not on the initiative of the author, but in response (it literally means 'written back') to a specific demand made by its addressee. It does not apply to more general legislation etcetera.