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Experts back stronger heat‑illness protections but urge technical fixes to proposed standard
Summary
University and safety experts told the committee they support stronger protections for workers from heat exposure but recommended changes to SB 830: use wet‑bulb globe temperature (WBGT) or scientifically validated indices, provide clear medical‑response language for exertional heat stroke, and exempt emergency personnel when necessary.
The committee heard technical testimony on Senate Bill 830, a proposed workplace heat‑illness standard. Doctor Robert Huggins (Corey Stringer Institute, University of Connecticut) supported the bill’s intent to strengthen protections but recommended multiple evidence‑based changes to align the draft with accepted occupational‑health practice.
Major technical recommendations - Use a validated environmental index. Huggins recommended using the wet‑bulb globe temperature (WBGT) index (or provide an explicit equivalency) rather than simple ambient temperature or the heat index, because WBGT better captures radiative load, humidity and non‑uniform exposure common in many workplaces. - Adjust trigger thresholds to match national guidance. Huggins noted that the draft’s temperature triggers appear inconsistent with American Conference of Governmental Industrial Hygienists (ACGIH) and recent federal OSHA proposed standards; he recommended raising or clarifying thresholds and ensuring they reference the correct metric (WBGT vs ambient temp vs heat index). - Clarify medical treatment language. The bill currently directs employers to allow a worker “to remain in the shade until such signs or symptoms subside.” Huggins warned that such language is dangerously incomplete for exertional heat stroke, which requires immediate whole‑body cooling and emergency medical response to avoid death or permanent injury. - Define heat acclimatization and return‑to‑work protocols. The expert recommended explicit staged acclimatization steps (for example, incremental workload increases over several days) and clear guidance for employees returning from extended leave.
Other testimony and employer concerns - Industry representatives (construction and business groups) urged careful drafting to avoid unintended conflicts with building and fire codes for shade structures and to clarify responsibility on multi‑employer job sites. - Contractors and employer groups also noted that federal OSHA already addresses heat risks and asked for clarity on enforcement jurisdiction and how the state standard would interact with existing federal guidance.
Next steps - Witnesses asked the committee to convene technical drafting sessions with public‑health and occupational experts and agency staff to align the bill’s metrics and emergency‑response language with current standards.
Ending: The hearing produced consensus on the need for stronger protections but highlighted important technical fixes and drafting changes needed to make the measure both effective and practicable.
