Importance factors for snow, wind and seismic loads shall be determined in accordance with Table 1604.5.2 based on the Structural Occupancy Category or Risk Category assigned in accordance with Table 1604.5.
TABLE 1604.5.2 IMPORTANCE FACTORS
TABLE 1604.5.2 IMPORTANCE FACTORS
| STRUCTURAL OCCUPANCY/RISK CATEGORY | SNOW IMPORTANCE FACTOR, I | WIND IMPORTANCE FACTOR, I | SEISMIC IMPORTANCE FACTOR, I |
| I | 0.80 | 0.87 | 1.00 |
| II | 1.00 | 1.00 | 1.00 |
| III | 1.10 | 1.15 | 1.25 |
| IV | 1.20 | 1.15 | 1.50 |