Heat Safety Standards for Workplaces

Summary#

The Asuncion Valdivia Heat Illness, Injury, and Fatality Prevention Act of 2025 would create a new law; it does not formally amend the Occupational Safety and Health Act. Its goal is to protect workers from heat-related illness and injury by requiring the Labor Secretary to issue workplace heat standards.

• Employers would have to protect workers from workplace conditions that may reasonably be expected to cause death or serious physical harm from heat stress, and follow standards issued under the Act.
• Within one year after enactment, the Secretary would have to issue an interim final heat standard. It would take effect when issued, though it could allow a reasonable delay.
• The standard would have to require a program with potable water or hydration, paid rest breaks, shade or cool-down spaces, and acclimatization when engineering controls or protective equipment do not reduce exposure below hazardous levels.
• The Secretary could also require measures such as cooling equipment, training, health monitoring, emergency plans, and written prevention plans. If a plan is required, employees and, where applicable, their representatives must meaningfully participate in developing, updating, and carrying it out.
• The bill would use enforcement and recordkeeping powers linked to federal workplace-safety law. It also sets a four-year limit for issuing citations and adds protections for employees reporting discrimination related to the Act.

What it means for you#

• Employers: If enacted, you would have a general duty to protect workers from serious heat hazards and to follow the new standards. The exact workplace steps would depend on the Secretary’s rules.
• Workers: Required rest breaks, training, and medical-removal time must be paid at the employee’s regular rate. Required training and written materials must be provided in English and in a language employees understand, if that is not English.
• Workers reporting retaliation: An employee who believes they were punished for a matter related to the Act could file a complaint with the Secretary within 180 days. The bill allows a court action in certain circumstances if the Secretary does not act or decides not to bring an action.
• Agricultural workers: The Secretary must update the National Agricultural Workers Survey to help measure heat illness and injury and assess the effects of standards and enforcement.
• Everyone: This bill is not yet law. It does not itself set exact heat thresholds or spell out all workplace procedures; those details would largely come from the Secretary’s standard.

Money#

No publicly available information on estimated public or employer costs.

• The bill authorizes Congress to provide whatever funding is needed, but does not appropriate a specific amount.
• Employers would pay for any required personal protective equipment and hydration, and would pay workers for required breaks, training, and medical-removal time.
• The bill does not estimate staffing, compliance, enforcement, or recordkeeping costs.

What is unclear#

• The bill does not set the heat levels that count as hazardous, or specify exactly when particular protections must be used.
• The Secretary would decide the details of the initial standard, including recordkeeping and reporting rules. The bill does not lay out those rules in advance.
• The bill does not explain how requirements would vary by workplace, beyond allowing the Secretary to group employers when designing standards.
• The supplied material does not include the Occupational Safety and Health Act itself, so the exact overlap with current federal duties and enforcement rules could not be verified.
• The bill does not state when it would take effect as a whole; it sets a one-year deadline for the initial standard after enactment.

Case for#

• The bill appears intended to address heat risks with a national workplace standard rather than relying only on rules tailored to particular workplaces.
• A possible argument for its approach is that it requires basic protections—water, paid breaks, shade or cool space, and acclimatization—when other controls do not bring exposure below hazardous levels.
• The Secretary could tailor additional requirements to different industries and work conditions and update standards as evidence or technology changes.
• Requiring paid protections and employee participation in any required prevention plan could make the measures more usable for workers.

Case against#

• The bill leaves key details, including hazardous heat levels and many employer requirements, to later rules. Employers and workers would not know the full standard from the bill itself.
• The Secretary must issue an interim final rule within one year without following several named rulemaking, paperwork, and environmental review requirements. That may limit time for review before the first standard takes effect.
• The bill authorizes funding without an estimate. Employers would also face costs for required equipment, paid breaks, training, and other measures.
• The bill gives the Secretary broad discretion to add requirements, while setting limited timelines and a specific route for challenging rules. The practical effect of those choices is not clear from the bill alone.