1. Member States shall ensure that where an author or a performer has licensed or transferred his or her rights in a work or other protected subject matter on an exclusive basis, the author or performer may revoke in whole or in part the licence or the transfer of rights where there is a lack of exploitation of that work or other protected subject matter.
2. Specific provisions for the revocation mechanism provided for in paragraph 1 may be provided for in national law, taking into account the following:
(a) the specificities of the different sectors and the different types of works and performances; and
(b) where a work or other subject matter contains the contribution of more than one author or performer, the relative importance of the individual contributions, and the legitimate interests of all authors and performers affected by the application of the revocation mechanism by an individual author or performer.
Member States may exclude works or other subject matter from the application of the revocation mechanism if such works or other subject matter usually contain contributions of a plurality of authors or performers.
Member States may provide that the revocation mechanism can only apply within a specific time frame, where such restriction is duly justified by the specificities of the sector or of the type of work or other subject matter concerned.
Member States may provide that authors or performers can choose to terminate the exclusivity of the contract instead of revoking the licence or transfer of the rights.
3. Member States shall provide that the revocation provided for in paragraph 1 may only be exercised after a reasonable time following the conclusion of the licence or the transfer of the rights. The author or performer shall notify the person to whom the rights have been licensed or transferred and set an appropriate deadline by which the exploitation of the licensed or transferred rights is to take place. After the expiry of that deadline, the author or performer may choose to terminate the exclusivity of the contract instead of revoking the licence or the transfer of the rights.
4. Paragraph 1 shall not apply if the lack of exploitation is predominantly due to circumstances that the author or the performer can reasonably be expected to remedy.
5. Member States may provide that any contractual provision derogating from the revocation mechanism provided for in paragraph 1 is enforceable only if it is based on a collective bargaining agreement.