Critical Infrastructure Employee Protection Act of 2020 This bill requires the Department of Transportation to support state, local, tribal, and territorial jurisdictions in providing (1) priority COVID-19 (i.e., coronavirus disease 2019) testing for essential critical infrastructure employees; and (2) priority access to personal protective equipment, sanitizers, face coverings, and health-related or protective supplies necessary to safely perform essential critical infrastructure work. ( Essential critical infrastructure employees include, but are not limited to, medical and health care, telecommunications, information technology systems, defense, food and agriculture, transportation and logistics, energy, water and wastewater, law enforcement, and public works.)