| Flag Conditions | |||
|---|---|---|---|
| Flag Condition | WBGT Index | Work/Rest Recommendations | Water Consumption Recommendations |
| White | 79.9°F and Below | No specific recommendations | No specific recommendations |
| Green | 80°F - 84.9°F | Periodic rest breaks (e.g., 10-15 minutes per hour) | Regular water consumption to prevent dehydration |
| Yellow | 85°F -87/.9°F | Frequent rest breaks (e.g., 20 minutes per hour) | Increased water consumption to prevent dehydration |
| Red | 85°F -87/.9°F | Work stoppage or postponement | Ample rest and increased fluid intake |
| Black | 90°F and Above | Work stoppage or postponement | Ample rest and increased fluid intake |