Between 5:00 a.m. to 9:00 a.m. and 3:00 p.m. to 8:00 p.m., Monday through Friday, (excluding the weekdays on which holidaysi are observed) you must have three or more occupants in your vehicle to qualify as a toll-free carpool. At all other times when tolling is in effect on the I-405 express toll lanes, you must have two or more occupants in your vehicle to qualify as a toll-free carpool. Occupancy requirements do not apply to vehicles that are otherwise exempt from tolls pursuant to WAC 468-270-110 or authorized as an HOV vehicle as defined in chapter 468-510 WAC.