In accordance with the provisions of article 8 of Organic Law 9/1983 of July 15, regulating the Right of Assembly, “the holding of meetings in places of public transit and demonstrations must be communicated in writing to the corresponding Governmental Authority by the organizers or promoters of the same, at least ten calendar days in advance and a maximum of thirty”, in addition, “when there are extraordinary and serious causes that justify the urgency of the convening and holding of meetings in places of public transit or demonstrations, the communication, [...] may be made at least 24 hours in advance”.