On interstate highways, do not drive slower than _______ unless driving conditions are hazardous or a lower speed limit has been posted.
Explanation
In West Virginia, the speed limits on interstate highways currently vary between 55 mph and 70 mph. If you drive much slower than other drivers, you create a hazard. Do not drive slower than 55 mph on an interstate unless the weather or road conditions are bad or a lower speed limit has been posted.
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