House numbers should be clear enough so that police, the fire department, paramedics, etc., can quickly locate properties in an emergency. House numbers are often the only way that first-responders can identify their intended destinations. A number of jurisdictions have begun enforcing laws through strict fines for homeowners who do not comply with laws that impose requirements for house numbers.
Many municipalities and counties have implemented ordinances requiring property owners to standardize the display of house numbers on buildings. The city of St. Martinville, Louisiana, for instance, is considering requiring its citizens to display street numbers in block numbering that is at least 4 inches tall and is either illuminated at night or has a reflective finish. If the ordinance is passed, the city will fine offenders $200, plus hundreds more in court fees. In Florida, the cities of Clearwater, Largo and St. Petersburg have begun enforcing their own municipal codes that regulate the visibility of house numbers, imposing fines for violators.In order for house numbers to be visible from the street, InterNACHI advises that they should:
Inspect the address or street number to determine that it is visible from the street with numbers in contrast to their background.
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