 At 90 degrees Fahrenheit, for example, mandatory rest breaks every two hours would be required. Training on heat risks for supervisors and employees would become mandatory. For agriculture, the rule is expected to have the biggest impact on the processing side, with meat packers, dairy processors, and fruit and vegetable farms all potentially seeing changes to their workday scheduling. Cattle feedlots and orchards are also likely to see increased oversight if the rule is finalized.