When, in the event of danger or disaster, the mayor of the municipality is required to rehouse dwellings referred to in the first paragraph of article R. 2511-4, these dwellings are not taken into account for the application of this paragraph.
After obtaining the opinion of the arrondissement councils, the city council shall draw up the list of rehousings and the conditions for the allocation, by arrondissement or group of arrondissements, of dwellings whose reservation is made necessary by the execution of renovation, rehabilitation or slum clearance operations falling within the remit of the municipality or by the execution of any other social operation for which the city council requests the application of these provisions. Such reservations may not, however, be made, per arrondissement or group of arrondissements, in respect of more than 75% of the housing referred to in the first paragraph of article R. 2511-4.