The Maryland Department of Labor recently proposed a draft rule for Occupational Heat Stress Illness Prevention Standards, which will be published in August for a 30-day public comment period.

The proposed rules would go into effect when the heat index reaches 80°F and would require:

• Mandatory cooled and shaded breaks
• Access to at least 32 ounces of water per hour
• Access to shade or alternate cooling measures
• Supervision for symptoms of heat related illness

At 90°F, additional 10-minute breaks would be required every two hours worked. At 100°F, workers would receive a 15-minute break every hour.

The rules also specify training requirements for these standards, as well as various other concerns.