ISO 

About ISO

The Granbury Volunteer Fire Department currently has an ISO rating of  3. 
  • ISO is an independent organization that measures the quality of public fire protection on which insurance premiums are based. 
  • ISO provides insurance companies, insurance regulators and fire departments, with the data they collect about fire risk in their communities. 
  • ISO employees visit thousands of fire districts each year in effort to review the firefighting capability and adequacy of water systems in those communities. *ISO analyzes the relevant data and assigns a Public Protection Classification (PPC); A number from 1 to 10. Class 1 represent exemplary fire protection, and Class 10 indicates that the area's fire-suppression program does not meet ISO's minimum criteria.