Allegheny Mountain Section

• Northwestern PA Chapter
• West Virginia Chapter
• Slippery Rock University Student Chapter
• Three Rivers Student Chapter

Brazil Section

Canadian Prairie and Northern Section (CPANS)

• Mt. Royal College

East Central Section

• East Michigan Chapter
• Indiana Chapter
• Kentucky Chapter
• Northern Ohio Chapter
• Southwest Ohio Chapter
• Kent State Student Chapter
• Michigan State
• Purdue University
• Univ. of Cincinnati Student Chapter
• University of Toledo Student Chapter
• Wayne State Student Chapter
• Western Kentucky University Student Chapter

Europe Section

Florida Section

• Big Bend Chapter
• Central Florida
• Coastal Plains Chapter
• Florida Southeast Chapter
• Northeast Florida Chapter
• Tampa Bay Chapter
• Univ. of Central Fl. Student Chapter
• Univ. of Florida Student Chapter

Golden West Section

• Golden Empire Chapter
• Mother Lode Chap.
• Mother Lode (UC) Student Chapter

Grand Canyon Section

Greater St. Louis Section

Hong Kong Section

Korea Section

Lake Michigan States Section

• Central Illinois Chapter
• West Michigan Chapter
• Illinois Institute of Technology Student Chapter

Louisiana Section

• Southwest Louisiana Chapter
• Louisiana State Student Chapter
• Tulane University Student Chapter

Mexico Section

• UAM - Azcapotzalco

Mid Atlantic States Section

• Central and Northern New Jersey Chapter
• Central NY Chapter
• Delaware Valley Chapter
• Eastern NY Chapter
• Penn State - Harrisburg Student Chapter
• Society of Environmental Professionals - Rensselaer Polytechnic Institute
• Syracuse University Student Chapter
• University of Delaware Student Chapter
• Wilkes University Student Chapter

Midwest Section

• Iowa Chapter
• Mid-Missouri Chapter
• Nebraska Chapter

Nevada Section

• Eastern Sierra Chap.
• Las Vegas Chapter

New England Section

• Connecticut Chapter
• Wentworth Student Chapter

Niagara Frontier Section

• Genessee Finger Lakes
• Buffalo State Student Chapter
• SUNY Buffalo Student Chapter

Northeast Mexico Section

• Tec de Monterrey Student Chapter
• Universidad Regiomontana Student Chapter

Ontario Section

• Essex-Kent Chapter
• Durham College Student Chapter
• Fanshawe Student Chapter
• Guelph Student Chapter
• Univ. of Toronto Student Chapter

Pacific Northwest Int'l Section

• Alaska Chapter
• British Columbia and Yukon Chapter
• Idaho Chapter
• Inland Northwest Chapter
• Montana Chapter
• Oregon Chapter
• Puget Sound Chapter
• Vancouver Island Chapter
• Huxley College Student Chapter
• Montana Tech Student Chapter
• Palonse Student Chapter

Philippines Section

• Saint Louis University Student Chapter

Quebec Section

• Atlantic Canada Chapter
• Ottawa Valley Chapter

Rocky Mountain States Section

• Great Basin Chapter
• New Mexico Chapter
• NM Institute of Mining and Technology Student Chapter
• Univ. of Col. - Denver Student Chapter
• Univ. of Utah Student Chapter
• Utah State Student Chapter

Saudi Arabia Section

South Atlantic States Section

• Baltimore/Washington Chapter
• Old Dominion Chapter
• Research Triangle Chapter
• Duke University
• James Madison University Student Chapter
• NC A&T University Student Chapter
• North Carolina State

Southern Section

• Alabama Chapter
• East Tenn. Chapter
• Georgia Chapter
• Mississippi Chapter
• W/Mid Tenn. Chapter
• Georgia Inst. of Tech.
• Jackson State University Student Chapter
• University of Tennessee, Knoxville Student Chapter

Southwest Section

• Alamo Chapter
• Arkansas Chapter
• Central Texas Chapter
• Corpus Christi Chapter
• Gulf Coast Chapter
• High Plains Chapter
• North Texas Chapter
• Oklahoma Chapter
• Sabine Chapter
• South Methodist University Student Chapter
• Texas A&M / Kingsville Student Chapter
• University of Texas at Arlington Student Chapter
• University of Texas at Austin Student Chapter

Taiwan Section

Upper Midwest Section

• Northland Chapter
• University of Minnesota Student Chapter

West Coast Section

• Channel Island Chapter
• Mid-Pacific Chapter
• Mojave Desert Chapter
• Orange County Chapter
• San Diego Chapter
• Singapore Chapter
• Thailand Chapter
• Asian Institute of Technology Student Chapter
• Bandung Institute of Technology Student Chapter in Indonesia
• Cal Poly Student Chapter
• CA State University-San Bernadino Student Chapter
• Delhi Student Chapter
• Sardar Patel College of Engineering, Mumbai Student Chapter
• University of CA-Northridge Student Chapter
• University of CA-Riverside Student Chapter