of these autoroutes into the adjoining jurisdictions. The New Brunswick Department of Transportation tends to use cities within the province as control cities. The Trans-Canada Highway uses Edmundston, Fredericton, Moncton, and Sackville as control cities from north to south. Bordering provinces are used sparingly, and only after they are the only remaining destination on the highway. Route 95, the link between the Trans-Canada Highway and Interstate 95, uses only Houlton, Maine as a control city to the west. United States The control cities on the Interstate Highway network are selected by the states and contained in the "List of Control Cities for Use in Guide Signs on Interstate Highways," which is published by the American Association of State Highway and Transportation Officials as Part III of the AASHTO Guidelines for Supplemental Guide Signing. Control cities on other U.S. roads are often selected on the basis of general principles, as opposed to specific lists of towns. U.S. federal lists are in practice not always followed. This may be the result of towns having gained importance since the list was last updated or in order to have local (intrastate) interests prevail over towns elsewhere. On the other hand, there are also instances where intrastate control cities have been left out so that long-distance focal points could be added. There are also instances where the name of another state has prevailed over the official control city, e.g. the signs in Boston heading to the state of Maine ("All Maine Points" appears twice on northbound I-95 just south of Portsmouth, NH.). On the U.S. federal list, control cities have often been selected by virtue of being located close to an intersection of two US-interstates. This has resulted in a number of very minor localities having control city status. Some examples: Interstate 8 heading eastbound in California from its starting point in San Diego signs El Centro and Yuma as control cities until the Arizona state line. This may be due to the fact that there are no cities in California or Arizona with a population of more than 200,000 that are along the freeway besides the aforementioned San Diego. Conversely, however, its Arizona route only signs Phoenix and Tucson heading east, while San Diego is the only control city signed heading west. Phoenix lies significantly north of Interstate 8, but may be signed to aid travelers from San Diego to Arizona’s capital and largest