The county of Hill and city of Havre civil defense plan is hereby approved. This plan provides for an integrated city-county organization for civil defense and for operations during periods of emergency, and thereby constitutes the most effective and efficient means of meeting the civil defense needs of the city of Havre and its citizens, by making maximum use of the existing agencies and capabilities of local government within Hill County, supported by volunteers and nongovernmental personnel and resources, to prevent or minimize loss of life and property that could be caused by enemy attack or other catastrophe or disaster affecting the city of Havre. The mayor of the city is hereby authorized to approve such revisions of said civil defense plan as may be made, from time to time, if he deems the revisions to be reasonably necessary to meet the civil defense needs of the city and its citizens. (Ord. 569, 2-22-1972)