Plan, prepare, and respond to coronavirus disease 2019 : This guidance is intended for use during the coronavirus disease 2019 (COVID-19) public health emergency by federal, state, and local public health officials, respiratory protection program managers, leaders in occupational health services and industrial hygiene programs, and other leaders who are responsible for developing and implementing policies and procedures for preventing occupational exposures in non-healthcare worksites. : This document offers strategies to conserve, extend, and respond to shortages in the supply of NIOSH-approved filtering facepiece respirators (FFRs) used in non-healthcare worksites such as manufacturing and construction.