The decentralised procedure (DCP) is the European Union-wide procedure for authorising medicines in more than one European Union Member State in parallel. It can be used for medicines that do not need to be authorised via the centralised procedure and have not already been authorised in any Member State. The procedure falls under the Directive 2004/27/EC.

In the decentralised procedure, the applicant chooses one country as the reference Member State when making its application for marketing authorisation. The marketing authorisation in all chosen Member States is received simultaneously, enabling simultaneous marketing of the medicine and reducing the administrative and regulatory burden.