Defined in the 2021IBC as:
- The U.S. Atlantic Ocean and Gulf of Mexico coasts where the basic design wind speed, V, for Risk Category II buildings is greater than 115 mph (51.4m/s);
- Hawaii, Puerto Rico, Guam, Virgin Islands, and American Samoa.
This page has not been translated into Tiếng Việt. Visit the Tiếng Việt page for resources in that language.