From the Document: "In order to provide a safe and secure election for election workers, voters, and observers for the November 3, 2020, General Election, the Secretary of State's Office, in consultation with California public health officials, has developed the guidance document, Election Administration Guidance under COVID-19 [coronavirus disease 2019], attached to this CCROV [County Clerks & Registrars of Voters]. The specific health and safety guidance presented here is based on information available as of the issuance of this document and is subject to change. The guidance document is directed toward California county elections officials and their workers as they prepare safe, clean environments for employees, election workers and volunteers, as well as voters and election observers, to ensure the November 3, 2020, General Election can be conducted during the current COVID-19 pandemic without creating new health risks."
State of California
California Secretary of State, Elections Division: https://elections.cdn.sos.ca.gov/