New Act No. 186/2013 Coll. on Czech citizenship and the amending of certain acts was promulgated in the Collection of Laws on 2 August 2013.

The new law brings revolutionary changes to the legal treatment of the loss of Czech citizenship and provides for the easy reacquisition of Czech citizenship by former citizens.

From 1 January 2014, Czech law will no longer contain a provision whereby Czech citizens automatically lose their Czech citizenship upon the acquisition of a foreign citizenship and the law will place no restrictions on dual citizenship. The only legal way to lose Czech citizenship after 1 January 2014 will be to issue a declaration renouncing it.

The new law also provides for a simplified method (in the form of a declaration) of obtaining Czech citizenship for individuals who lost their Czech or Czechoslovak citizenship while previous legislation was in effect.