Workers in critical infrastructure sectors may be permitted to work if asymptomatic after potential exposure to a confirmed case of coronavirus disease 2019 (COVID-19), provided that worker infection prevention recommendations and controls are implemented. Outbreaks of illness among workers in food-producing facilities and surrounding communities have raised unique questions that identified the need for testing for COVID-19 to supplement existing guidance. This document presents different testing strategy options for exposed co-workers when public health organizations and employers determine testing is needed to help support existing disease control measures. Such strategies can aid in identifying infectious individuals with the goal of reducing transmission of SARS-CoV-2 in the workplace. These strategies augment and do not replace existing guidance.