■ Use special precautions associated with Biosafety Level 3 when handling specimens from known or suspected COVID-19 patients. For more information about biosafety levels, consult the U.S. Department of Health and Human Services (HHS) “Biosafety in Microbiological and Biomedical Laboratories” at www.cdc.gov/biosafety/ publications/bmbl5. Administrative Controls If working in a healthcare facility, follow existing guidelines and facility standards of practice for identifying and isolating infected individuals and for protecting workers. ■ Develop and implement policies that reduce exposure, such as cohorting (i.e., grouping) COVID-19 patients when single rooms are not available. ■ Post signs requesting patients and family members to immediately report symptoms of respiratory illness on arrival at the healthcare facility and use disposable face masks. ■ Consider offering enhanced medical monitoring of workers during COVID-19 outbreaks. ■ Provide all workers with job-specific education and training on preventing transmission of COVID-19, including initial and routine/refresher training. ■ Ensure that psychological and behavioral support is available to address employee stress. Safe Work Practices ■ Provide emergency responders and other essential personnel who may be exposed while working away from fixed facilities with alcohol-based hand rubs containing at least 60% alcohol for decontamination in the field. OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION 24