Wind load requirements,
mapped for all 50 states
The definitive reference for ASCE 7-22 adoption, PE-seal rules, and HVHZ zones in every U.S. state — built on 24 years of permit-approved engineering.
The U.S. wind-load map
Every state, color-coded by how it governs wind loads. Hover any state; click the highlighted ones for its full requirements.
The 10 mandatory wind-load states
These are the only states that legally require PE-sealed wind load calculations for building permits.
Florida HVHZ
Most Stringent Requirements in the Nation
- HVHZ designation for Miami-Dade, Broward counties
- Florida Building Code (FBC) supersedes ASCE 7
- Mandatory PE seal for all wind calculations
- Product approval required (NOA, TAS, etc.)
- Special inspection requirements
- Wind speeds: 130-195 mph (HVHZ areas)
Texas HVHZ
Coastal HVHZ and Inland Requirements
- HVHZ within 1 mile of Gulf Coast
- Texas Department of Insurance (TDI) regulations
- PE seal required for commercial structures
- Coastal vs. inland wind speed variations
- Enhanced tie-down requirements
- Wind speeds: 120-160 mph (coastal)
Hawaii HVHZ
Island Exposure and Hurricane Risk
- Entire state considered HVHZ
- Extreme exposure due to island geography
- PE seal mandatory for all structures
- Special considerations for volcanic zones
- Salt spray corrosion requirements
- Wind speeds: 130-170 mph
North Carolina
Hurricane Prone Atlantic Coast
- Enhanced requirements for coastal counties
- Outer Banks have highest exposure
- PE seal for commercial buildings
- Special flood and wind combination loads
- Barrier island construction restrictions
- Wind speeds: 110-160 mph (coast)
South Carolina
Hurricane and Tropical Storm Exposure
- Coastal high-wind zone designation
- PE requirements for commercial projects
- Enhanced tie-down requirements
- Special provisions for barrier islands
- Flood zone coordination required
- Wind speeds: 110-150 mph (coast)
Louisiana
Gulf Coast Hurricane Zone
- Post-Katrina enhanced requirements
- Coastal vs. inland code differences
- PE seal mandatory for commercial
- Special pile foundation requirements
- Combined wind and flood loads
- Wind speeds: 120-170 mph (coast)
New York
Coastal Exposure and High-Rise Requirements
- NYC has specific wind load requirements
- Long Island coastal exposure
- PE seal required for all commercial
- High-rise special wind studies
- Salt spray zones require protection
- Wind speeds: 105-130 mph (coast)
Virginia
Atlantic Coast and Chesapeake Bay
- Coastal high-wind designation
- Hampton Roads area special requirements
- PE seal for commercial structures
- Combined wind and flood considerations
- Barrier island restrictions
- Wind speeds: 110-145 mph (coast)
Georgia
Coastal Hurricane Risk Zone
- Coastal counties have enhanced codes
- Savannah area special requirements
- PE seal for commercial projects
- Barrier island construction limits
- Historic district special considerations
- Wind speeds: 110-140 mph (coast)
California
Coastal and Mountain Wind Exposure
- Varies significantly by region
- Santa Ana wind zones require special analysis
- PE seal required for commercial
- Seismic and wind load combination
- Wildfire urban interface considerations
- Wind speeds: 85-120 mph (varies)
Find your state's requirements
Jump straight to a state. Dots show its category: amber = HVHZ, blue = mandatory PE seal, cyan = standard.
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Permit-ready wind load calculations, trusted since 2002.