The PUC, representing Latvia, cooperates with regulators of other countries in all regulated public service sectors. The PUC is active in various international organisations for cross-border cooperation whose functions are associated with planning and development of legal framework of regulation, secure and sustainable development of the internal market, as well as resolving various regulatory issues internationally.

The PUC actively participates in the European Union energy regulators’ organisations (CEER and ACER), the European electronic communications and post regulators’ organisations (IRGBEREC and ERGP) whose common basic objectives are the consolidation and transparency of internal markets, service quality, ensuring network access and the new cross-border functions, implementation of directives in accordance with regulatory competence, as well as other specific objectives for each sector. PUC is also an active member of the European Water Regulators organisation (WAREG) and its working group dealing with waste sector (WASTE-REG) whose main objectives are exchange of information and of best practice.

TAIEX (EC Technical Assistance and Information Exchange). Starting operations in 2001, the PUC used the opportunities provided by TAIEX to successfully solve specific regulatory aspects in Latvia. At present, the PUC experts work very actively in the implementation of the EU electronic communications regulations, improvement of service quality and other directions, especially to reach the objectives for regulation of electronic communications put forward by the states of the Balkan region, and also as short-term experts in other countries.