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Final rule.

Through this final rule the FHWA is adopting the revised design standards that apply to highway construction and reconstruction projects on the Interstate System. The FHWA is adopting as its design standards the current version of the American Association of State Highway and Transportation Officials' (AASHTO) publication entitled A Policy on Design Standards Interstate System, January 2005. This publication has replaced the previous version of this policy published in 1991.

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