On the 14th November 1918, the National Government of the Kingdom of SHS in Ljubljana issued a decree on transitional administration in Slovenia. This document was published on the 21st November 1918 in the Official Journal of the National Government of SHS in Ljubljana as the National Government Proclamation No. 111. The decree was prepared for publication by an administrative commission, which was appointed on the 7th November 1918 and consisted of 7 members. It was chaired by Ivan Žolger, the top expert on the administrative law in Austro-Hungarian monarchy. The Decree on Transitional Administration was called the Žolger Constitution by the legal experts of the time. Composed of an introduction and 17 chapters, it contained the provisions regulating the operation of the National Government of SHS in Ljubljana and other highest or most important institutions in Slovenia. The decree was adopted and published in agreement with the National Council in Zagreb. On the basis of the decree, the National Government of SHS in Ljubljana exercised administration and power over the entire Slovene territory: Carniola, Goriško, Slovene Istra, Trieste and its larger area, and Styria and Carinthia, to the extent these two regions were included in the State of Slovenes, Croats and Serbs. Under a new programme for a United Slovenia, the National Government of SHS in Ljubljana used the decree to spread its own administrative and legislative power throughout the Slovene territory. Ljubljana became the administrative centre of Slovenia. The Decree on Transitional Administration was supposed to remain in force until the adoption of a new constitution. Meanwhile, the National Government of SHS in Ljubljana would govern the autonomous Slovenia. Due to internal political circumstances in the State of Slovenes, Croats and Serbs, as well as to the Italian occupation ofa part of Slovene and Croatian territories, preparations were launched for the integration of Serbs, Croats and Slovenes into a new state, the Kingdom of Serbs, Croats and Slovenes, under the regency of Alexander Karadjordjević. The preparations began on the 23rd November 1918 in the National Council in Zagreb. The integration took place on the 1st December 1918. This way, Slovenia lost its autonomy. The National Government of SHS in Ljubljana was dissolved and Serbian centralism was introduced. The Decree on the Transitional Administration in the territory ofthe National Government of SHS in Ljubljana lost its status as a state-establishing law.