CO HB1286

Establishes temperature triggers requiring employer action: initial heat trigger at 80°F heat index, high heat trigger at 90°F, and extreme cold trigger at 30°F with 20 mph winds

Requires employers to provide workers with access to potable water (at least 32 oz per hour), shaded or air-conditioned rest areas within one-quarter mile of worksites, and paid cool-down or warm-up breaks

Mandates 15-minute paid rest breaks every two hours when temperatures reach or exceed the high heat trigger (90°F), with mandatory buddy systems or supervisor observation for signs of heat/cold illness

Requires employers to develop and implement a Temperature-Related Injury and Illness Prevention Plan (TRIIPP) with site-specific emergency procedures, and provide annual training to workers on heat/cold hazards

Applies to most employers including state/local government and agricultural operations, with exceptions for telework, emergency response organizations, and exposures lasting less than 15 minutes per hour; takes effect April 1, 2026