PRF Practice Questions - Concurso Público Para Policial Rodoviário Federal Exam

Only when engaged in actual urgent emergency public service and properly identified by simultaneously activated sound alarms (sirens) and flashing red/blue light devices. At all times during a patrol shift, regardless of whether sound sirens or optical warning devices are activated. Exclusively when transporting an injured individual to an intensive care hospital with prior judicial authorization. Only on dual-carriageway federal highways between sunrise and sunset under dry weather conditions.