OSHA's updated Heat Stress QuickCardTM serves as a reminder to employers to acclimate workers to heat conditions. Employers should gradually increase workloads and allow more frequent breaks for workers who are new to the heat or those who have been away from work. The updated QuickCardTM also advises employers to modify work schedules and establish a complete heat illness prevention plan to protect their workers. OSHA's Heat Safety Tool, a mobile app that allows users to calculate the heat index, is also available for employers and workers.