and rural two-lane limited access roads, the speed limit is , such as on I-189 and Interstate 89 in Burlington, and US Route 7 and Vermont State Route 279 outside of Bennington. Rural freeways are posted at . Furthermore, the speed limit drops from 65 mph on rural highways to at the approach to the Canada–US border on Interstates 89 and 91, at Highgate and Derby Line, respectively. In school zones, the speed limit can range from to , depending on local authority. The minimum speed is defined at only on Interstate highways. That includes where the limit is posted at 55 and 65 mph. However, as old signs are being replaced, the "40 MINIMUM" is being phased out, keeping only "SPEED LIMIT 65". Virginia A Virginia statute provides that the default speed limit "shall be 55 mph on interstate highways or other limited access highways with divided roadways, nonlimited access highways having four or more lanes, and all state primary highways." "The maximum speed limit on all other highways shall be 55 miles per hour if the vehicle is a passenger motor vehicle, bus, pickup or panel truck, or a motorcycle, but 45 mph on such highways if the vehicle is a truck, tractor truck, or combination of vehicles designed to transport property, or is a motor vehicle being used to tow a vehicle designed for self-propulsion, or a house trailer." The same statute contains a number of exceptions, however, allowing higher speed limits "where indicated by lawfully placed signs, erected subsequent to a traffic engineering study and analysis of available and appropriate accident and law-enforcement data". This provision allows speed limits of up to on Interstate highways; multilane, divided, limited-access highways; and express or high-occupancy vehicle lanes if said lanes are physically separated from the regular travel lanes. (As of August 2015, Virginia has three such barrier-separated facilities: high-occupancy vehicle lanes on I-64 in the Tidewater area; as well as high-occupancy/toll "Express Lanes" on I-495 and I-95, and HOT/HOV lanes on I-395, all in Northern Virginia.) The statute also allows speed limits on a number of specified non-limited access, multilane, divided highways. The 70-mph provision was added to Section 46.2-870 via an amendment effective on July 1, 2010. The previous version of the statute had authorized a 70-mph speed limit only on I-85; the maximum limit permitted elsewhere was 65 mph. Notably, the revised statute does not require