Separate guidance released in May by CDC and OSHA provides recommendations for protecting workers at construction sites during the COVID-19 pandemic. The guidance acknowledges that construction workers, who were generally considered essential and therefore not subject to state stay-at-home orders, may encounter additional exposure to the disease as other businesses open and communities become more active.  OSHA stresses that its guidance is non-binding and creates no new legal obligations. The guidance associates specific construction work tasks with the four levels of the agency’s “exposure risk pyramid,” which categorizes tasks as lower risk, medium risk, high risk, or very high risk. In the context of COVID-19, lower-risk tasks include those that allow employees to remain at least six feet apart and involve little contact with others. High-risk tasks require entering an indoor work site occupied by people suspected or known to have COVID-19. The agency does not identify tasks that have a “very high” exposure risk for the disease. According to OSHA, this category is not applicable for most construction work. OSHA’s guidance recommends the use of engineering controls, such as plastic barriers to separate workers when working indoors, and administrative controls, such as the use of screening questions to assess the risk of work assignments in indoor environments where others may be present. The guidance also addresses training topics and includes a lengthy section on the use of cloth face coverings. CDC’s guidance includes recommendations for employers on reducing disease transmission among workers, maintaining a healthy work environment, and maintaining healthy business operations. Like OSHA, CDC recommends staggering work shifts, physically separating workers, restricting access to limit the number of workers in an area, reducing the number of people at meetings, and maintaining social distancing at choke points such as hallways.