Which of the following is NOT one of the mandatory evacuation triggers listed in the AAMVA CDL Manual?

AAMVA CDL Manual, Section 10.3.1 – Planning for Emergencies (Mandatory Evacuations), p. 10-6

Knowing the specific, limited list of mandatory triggers keeps a driver from either over-evacuating for routine mechanical issues or hesitating when one of the five true emergencies is actually present.