NH HB1451

Requires employers to develop written plans protecting workers when temperatures reach 80°F or above (heat index) or 15°F or below (wind chill), including mandatory paid rest breaks in temperature-controlled areas and provision of fluids

Mandates written plans include acclimatization procedures for new/returning employees, emergency response protocols, buddy systems to identify workers showing heat or cold stress symptoms, and use of hazard controls hierarchy

Requires employers to provide annual training covering heat/cold illness identification, symptoms, risk factors, reporting procedures, and employee rights

Prohibits employer retaliation against employees who exercise rights under the law or report violations to government entities

Takes effect 60 days after passage; authorizes the Labor Commissioner to adopt rules for enforcement