WARNING EXHAUST GASES CAN BE DEADLY EXPOSURE TO EXHAUST GASES PRODUCES SYMPTOMS OF HEADACHE, DIZZINESS, LOSS OF MUSCULAR CONTROL, APPARENT DROWSINESS, AND COMA. PERMANENT BRAIN DAMAGE OR DEATH CAN RESULT FROM SEVERE EXPOSURE. CARBON MONOXIDE OCCURS IN THE EXHAUST FUMES OF FUEL BURNING HEATERS AND INTERNAL COMBUSTION ENGINES, AND BECOMES DANGEROUSLY CONCENTRATED UNDER CONDITIONS OF INADEQUATE VENTILATION. THE FOLLOWING PRECAUTIONS MUST BE OBSERVED TO INSURE THE SAFETY OF PERSONNEL WHENEVER FUEL BURNING HEATER(S) OR ENGINE OF ANY VEHICLE IS OPERATED FOR MAINTENANCE PURPOSES OR TACTICAL USE. DO NOT OPERATE HEATER OR ENGINE OF VEHICLE IN AN ENCLOSED AREA UNLESS IT IS ADEQUATELY VENTILATED. DO NOT IDLE ENGINE FOR LONG PERIODS WITHOUT MAINTAINING ADEQUATE VENTILATION IN PERSONNEL COMPARTMENTS. DO NOT DRIVE ANY VEHICLE WITH INSPECTION PLATES OR COVER PLATES REMOVED UNLESS NECESSARY FOR MAINTENANCE PURPOSES. BE ALERT AT ALL TIMES DURING VEHICLE OPERATION FOR EXHAUST ODORS AND EXPOSURE SYMPTOMS. IF EITHER ARE PRESENT, IMMEDIATELY VENTILATE PERSONNEL COMPARTMENTS. IF SYMPTOMS PERSIST, REMOVE AFFECTED PERSONNEL FROM VEHICLE AND TREAT AS FOLLOWS: EXPOSE TO FRESH AIR; KEEP WARM; DO NOT PERMIT PHYSICAL EXERCISE; IF NECESSARY, ADMINISTER ARTIFICIAL RESPIRATION. IF EXPOSED, SEEK PROMPT MEDICAL ATTENTION FOR POSSIBLE DELAYED ONSET OF ACUTE LUNG CONGESTION. ADMINISTER OXYGEN IF AVAILABLE. THE BEST DEFENSE AGAINST EXHAUST GAS POISONING IS ADEQUATE VENTILATION.