various combinations that could be considered politically unacceptable—mainly due to implications relating to nazi germany—are disallowed or otherwise avoided. the district sächsische schweiz-osterzgebirge uses the name of its main town, pirna, in its code "pir", to avoid the use of "ss", the name of the nazi group; similarly "sa" is also unused. this is why automobiles for the government and parliament in saxony-anhalt are registered with lsa (land sachsen anhalt). in 2004 in nuremberg, an automobile owner was refused a number plate beginning n-pd because of the connection to the political party, the npd.