 CDOT: www.dot.state.co.us
 National Asphalt Pavement Association: www.hotmix.org
 Asphalt Alliance: www.asphaltalliance.com
 The Asphalt Institute: www.asphaltinstitute.org
 National Center for Asphalt Technology: www.ncat.us
 Pavement Noise: www.quietpavement.com
 Environmental Issues: www.beyondroads.com
 CARSE www.carse.org
 http://colorado.apwa.net/index.asp
 Warm Mix Asphalt Web Site
 Airfield Asphalt Pavement Technology Program (AAPTP)
Archived Trends Page
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