The surrender of a registered Community design shall be declared to the Office in writing by the right holder. It shall not have effect until it has been entered in the register.

If a Community design which is subject to deferment of publication is surrendered it shall be deemed from the outset not to have had the effects specified in this Regulation.

A registered Community design may be partially surrendered provided that its amended form complies with the requirements for protection and the identity of the design is retained.

Surrender shall be registered only with the agreement of the proprietor of a right entered in the register. If a licence has been registered, surrender shall be entered in the register only if the right holder in the registered Community design proves that he has informed the licensee of his intention to surrender. This entry shall be made on expiry of the period prescribed by the implementing regulation.

If an action pursuant to Article 14 relating to the entitlement to a registered Community design has been brought before a Community design court, the Office shall not enter the surrender in the register without the agreement of the claimant.

Subject to Article 25(2), (3), (4) and (5), any natural or legal person, as well as a public authority empowered to do so, may submit to the Office an application for a declaration of invalidity of a registered Community design.

The application shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the fee for an application for a declaration of invalidity has been paid.

An application for a declaration of invalidity shall not be admissible if an application relating to the same subject matter and cause of action, and involving the same parties, has been adjudicated on by a Community design court and has acquired the authority of a final decision.

If the Office finds that the application for a declaration of invalidity is admissible, the Office shall examine whether the grounds for invalidity referred to in Article 25 prejudice the maintenance of the registered Community design.

In the examination of the application, which shall be conducted in accordance with the implementing regulation, the Office shall invite the parties, as often as necessary, to file observations, within a period to be fixed by the Office, on communications from the other parties or issued by itself.

The decision declaring the registered Community design invalid shall be entered in the register upon becoming final.

In the event of an application for a declaration of invalidity of a registered Community design being filed, and as long as no final decision has been taken by the Office, any third party who proves that proceedings for infringement of the same design have been instituted against him may be joined as a party in the invalidity proceedings on request submitted within three months of the date on which the infringement proceedings were instituted.

The same shall apply in respect of any third party who proves both that the right holder of the Community design has requested that he cease an alleged infringement of the design and that he has instituted proceedings for a court ruling that he is not infringing the Community design.

The request to be joined as a party shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the invalidity fee, referred to in Article 52(2), has been paid. Thereafter the request shall, subject to any exceptions laid down in the implementing regulation, be treated as an application for a declaration of invalidity.