American Association of State Highway and Transportation Officials (AASHTO)
www.aashto.org

American Road & Transportation Builders Association (ARTBA)
www.artba.org

Asphalt Institute (AI)
www.asphaltinstitute.org

Asphalt Pavement Alliance (APA)
www.asphaltalliance.com

Center for Transportation Studies, University of Minnesota
www.cts.umn.edu

Minnesota Asphalt Pavement Association (MAPA)
www.asphaltisbest.com

Minnesota County Engineers Association (MCEA)
www.mcea.gen.mn.us

Minnesota Department of Transportation (MnDOT)
www.dot.state.mn.us

Minnesota Pollution Control Agency (MPCA)
www.pca.state.mn.us

National Asphalt Pavement Association (NAPA)
www.hotmix.org

National Center for Asphalt Technology (NCAT)
www.eng.auburn.edu/center/ncat

Transportation Research Board
www.nas.edu/trb/

U.S. Environmental Protection Agency (EPA)
www.epa.gov

U.S. Department of Labor
Mine Safety & Health Administration (MSHA)
www.msha.gov

U.S. Department of Transportation (USDOT)
www.dot.gov