CC02021-07-202021-07-202006https://e-bp.inp.pan.pl/handle/123456789/517Despite potentially playing complementary roles in fostering competitive markets and safeguarding consumer welfare, the different approaches employed and different perspectives held by competition policy and sector regulation can be a source of friction. Moreover, the distinction between economic and technical regulation and competition enforcement can often be blurred. This paper examines the various frameworks under which competition authorities and sector regulators are coexisting in order to glean best practices from various countries' experiences. It concludes that although there is no ideal type of division of labour between competition authorities and other regulatory bodies, it is possible to specify guidelines and principles that can be generally applied to most industries and countries.enOther