(A) For motor carriers subject to this title, an intrastate motor carrier driver may not drive:
(1) more than twelve hours following eight consecutive hours off duty;
(2) for any period after having been on duty sixteen hours following eight consecutive hours off duty;
(3) after having been on duty seventy hours in seven consecutive days;
(4) more than eighty hours in eight consecutive days.
(B) An intrastate driver is determined by his previous seven days of operation.