| http://www.w3.org/ns/prov#value | - It modified its usual rule by providing that, if a driver-salesman 'spends more than 50 percent of his time in selling and less than 50 percent in performing such duties as driving, loading, and unloading,' he may be permitted to exceed the usual limit of 60 hours on duty in any week of 168 consecutive hours, provided only that 'his hours of driving are limited to a total of not more than 40 in an
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