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| | misc.transport.road FAQ |
 | | A list of Interstate business routes is at http://www.interstate-guide.com/business-routes/ and a list of U.S. business and other auxiliary routes is at http://www.us-highways.com/usban.htm. |
 | | Unlike other interstate highways, which have their numbers assigned by AASHTO, I-99's number was assigned in a piece of appropriations legislation sponsored by former Rep. Bud Shuster (R-Pa.), through whose district the highway ran. |
 | | Alaska and Puerto Rico officially have Axx and PRxx routes, respectively, but these are unsigned and, in Alaska's case at least, generally not up to Interstate standards. |
| www.roadfan.com /mtrfaq.html (622 words) |
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