Okay, so, despite what I said in the post there is still a lot of confusion about the Union change, so here's the proposed text.
Article V, Section IV
Citizens of the Union shall be permitted to vote for delegates to a cultural assembly, which will serve as the elected representative body of a non-territorial cultural republic within the Union. This body will be authorized to carry out cultural and symbolic functions in accordance with the will of the citizens it represents, so long as those cultural and symbolic functions are harmonious with the other terms of the Union Constitution as laid out herein. In order to carry out its duties, each cultural assembly will be granted an autonomous budget in proportion to the number of citizens it represents. In all respects regarding these delegates, assemblies, and republics, including matters of derived powers, budgetary allocations, and oversight functions, the Union Assembly will remain the supreme authority and will adjudicate all disputes or concerns.
This section will be inserted into the text of the existing constitution if the Union of Central European Republics choice wins. The constitution will then be updated to replace all mentions of the Republic with the Union and given minor superficial tweaks where necessary (this will also be done with the CER name change). This will be done through the standard process of amending the constitution through the National Assembly, which is what this vote represents. This is not an extralegal process; I'm just including it in the Prague Commission vote because it's part of the post-war settlement.