57. If an actual or imminent major or minor disaster in the territory of a local municipality or in the area of jurisdiction of its civil protection service exceeds its emergency response capabilities, those of its civil protection service and those of the resources secured by the municipality by way of an agreement pursuant to the civil protection plan, the local municipality may, through its mayor or, if the mayor is absent or unable to act, through the acting mayor or two other members of the municipal council, or through any municipal officer designated for that purpose by by-law of the municipality, address a request to their counterparts for the intervention or assistance of another municipality or of its civil protection service.
The cost of the assistance shall be borne by the municipality having requested it, according to a reasonable tariff established by resolution of the assisting municipality, unless the municipalities concerned decide otherwise.
This section applies, with the necessary modifications, to all civil protection authorities.