NJ S3884

Requires the Commissioner of Labor and Workforce Development to establish a heat stress standard by June 1, 2025, setting temperature thresholds (85°F heat index outdoors, 85°F indoors) that trigger mandatory employer protections including potable water, paid rest breaks, shade access, and emergency response procedures

Mandates employers develop written heat-related illness and injury prevention plans with employee participation, annual training for workers and supervisors, and recordkeeping of all heat-related illnesses, injuries, and fatalities for at least three years

Creates the "Occupational Heat-Related Illness and Injury Prevention Program" within the Department of Labor to enforce standards, conduct workplace inspections, and provide outreach to employers and employees

Establishes anti-retaliation protections for employees who report violations, refuse unsafe work, or participate in proceedings, with a rebuttable presumption of retaliation if adverse action occurs within 90 days of exercising protected rights

Exempts amusement parks, emergency responders during active operations, and certain union workers with collective bargaining agreements containing heat protections; commercial farms must follow a separate heat standard developed by the Department of Agriculture