This is the reverse of private companies and government, where communications is limited to each entity by their FCC license and equipment. Amateur radio operators use their equipment regularly which verifies that it's maintained and operational. Some of the equipment are hand-held portables or mobiles installed in vehicles. The amateur radio operators are familiar with the operation and capabilities of their equipment. Amateur radio operators are distributed throughout the community, near schools, churches and park facilities which are often used for evacuation shelters.
Many companies have amateur radio operators within their employement.