BALTREG is annual meetings of the Latvian, Lithuanian and Estonian electronic communications and postal regulators on the most topical sector issues, providing in-depth information and proposals for daily work. 

In 2003, following the PUC’s initiative the first joint meeting of the regulators of the three Baltic States and Nordic Countries (NORDREG) took place addressing the aspects of regulation of electronic communications. These meetings take place depending on agendas.

The PUC participates in the UPU congresses and expresses Latvia's opinion on regulatory issues of the postal sector.