Cases or judicial opinions can be published by more than one publisher. When this occurs, the case name may be followed by one or more parallel citations. The official reporter is provided by the publisher with which the Court has contracted to publish the reports; any other citation is unofficial. The unofficial version may contain additional editorial features which differ from the official version. Fastcase relies on the use of official and unofficial publications in order to provide the full text and provides parallel citations where available.
Here is an example of a parallel citation: