Senate Health Committee Chairman Bill Cassidy (R-La.), joined by 15 fellow Republican senators, sent a letter urging OSHA not to move forward with the implementation of a proposed heat regulation. OSHA's first-of-its-kind proposed rule, titled “Heat Injury and Illness Prevention in Outdoor and Indoor Work Settings,” was introduced in August 2025, and a final rule is widely expected to be issued in mid-to-late 2026. Although the specific heat standard is not yet mandatory, OSHA continues to enforce heat safety under the General Duty Clause and its National Emphasis Program (NEP), which has been extended through 2026.
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