Regions:
North Central Region (NC):
IA, IL, IN, KS, KY, MI, MN, MO, NE, ND, OH, SD, WI
Northeastern Region (NE):
CT, DC, DE, MA, ME, MD, NH, NJ, NY, PA, RI, VA, VT, WV
Southeastern Region (SE):
AL, FL, GA, MS, NC, SC, TN
Southwestern Region (SW): AR, LA, OK, TX
Western Region (W): AZ, CA, CO, HI, ID, MT, NM, NV, OR, UT, WA, WY