Article 4 Free movement

Member States shall not impede, for the matters covered by this Regulation, the making available on the market of products with digital elements which comply with this Regulation.

At trade fairs, exhibitions, demonstrations or similar events, Member States shall not prevent the presentation or use of a product with digital elements which does not comply with this Regulation, including its prototypes, provided that the product is presented with a visible sign clearly indicating that it does not comply with this Regulation and that it is not to be made available on the market until it does so.

Member States shall not prevent the making available on the market of unfinished software which does not comply with this Regulation, provided that the software is made available only for a limited period required for testing purposes with a visible sign clearly indicating that it does not comply with this Regulation and that it will not be available on the market for purposes other than testing.

Paragraph 3 does not apply to safety components as referred to in Union harmonisation legislation other than this Regulation.