Denmark follows the harmonized regulatory standards set out by the European Union's Radio Equipment Directive (RED) 2014/53/EU. Any radio or telecommunications equipment destined for the Danish market is required to meet the directive's provisions, which span radio frequency performance, electromagnetic compatibility, electrical safety, and spectrum use.

Because of this EU-wide alignment, products backed by proper CE conformity documentation can typically enter the Danish market without going through an additional national approval process or undergoing separate in country laboratory testing.

Devices such as Wi-Fi and Bluetooth-enabled products, mobile phones, IoT hardware, RF transmitters, and other wireless or telecommunications equipment must all carry CE marking to be sold in Denmark. This certification must be accompanied by a valid EU Declaration of Conformity and a complete set of technical documentation demonstrating adherence to the relevant European standards.