The Prsänëan measures system is the official system of units and measures used in the Grand Duchy of Prsänëa. It was made the official system of the region on the 22nd of January, 2012 by the decree of the then Premier of the Prsänëa People's Republic, James Wilary. The system was unaffected by the succession of the Republic from A1. Except for the use of Rankine as the temperture scale in the Prsänëan system, all units in the system are unique and invented specifically from the nation. By law, when the Prsänëan measures system cannot be used or does not contain provisions for a type of measure, degrees Kelvin and the Imperial system are to be used instead, followed by the Metric system and degrees Fahrenheit.