6. Member States shall provide that, in respect of new online content-sharing service providers the services of which have been available to the public in the Union for less than three years and which have an annual turnover below EUR 10 million, calculated in accordance with Commission Recommendation 2003/361/EC (20), the conditions under the liability regime set out in paragraph 4 are limited to compliance with point (a) of paragraph 4 and to acting expeditiously, upon receiving a sufficiently substantiated notice, to disable access to the notified works or other subject matter or to remove those works or other subject matter from their websites.
Where the average number of monthly unique visitors of such service providers exceeds 5 million, calculated on the basis of the previous calendar year, they shall also demonstrate that they have made best efforts to prevent further uploads of the notified works and other subject matter for which the rightholders have provided relevant and necessary information.