What are the Insurance Services Organization (ISO) Classification Regulations?

Any property inside the city limits of Missouri City is an ISO Class 1. For areas outside of the city limits and within our response district, the Outside Protection Area (OPA):

  • Property within 1,000 feet from a fire hydrant and within five miles from a fire station is an ISO class 3.
  • Property that is more than 1,000 feet from a fire hydrant and within five miles from a fire station is an ISO class 9.
  • Property that is less than 1,000 feet from a fire hydrant and is over five miles from a fire station is an ISO class 10.
  • Property that is more than 1,000 feet from a fire hydrant and over five miles from a fire station is an ISO class 10.
Texas State Fire Marshal's Office

Show All Answers

1. How do I obtain a fire permit?
2. How can I obtain a fire report?
3. How do I dispose of hazardous waste?
4. Can I arrange for a fire station tour?
5. Why does the fire truck arrive when I call for an ambulance?
6. How do I get fire department assistance for smoke detectors in my house?
7. What if I smell gas in my house?
8. When was the Missouri City Fire Department founded?
9. How do I get help in an emergency?
10. Can I park in fire lanes?
11. How do I obtain a burn permit?
12. Can I ignite fireworks inside the city limits?
13. What fire safety should a business follow?
14. How do I obtain a commercial fire inspection?
15. What kind of fire escape plan should I have?
16. What are the Insurance Services Organization (ISO) Classification Regulations?