Despite the frequency and severity of violent storms in the United States, particularly in Tornado Alley and areas affected by hurricanes, there is little to no policing of the storm shelter production or installation by any government agency or association. (Wikipedia)
Property developments in areas susceptible to violent storms should be required by law to construct easily accessible storm shelters below or above ground capable of withstanding extremely severe weather. The number and distribution of such shelters would vary based on the development's demographics (for example, one storm shelter per five houses capable of comfortably holding up to 25 people), while larger structures such as schools and hospitals should have dedicated shelters or safe rooms.