| Region | Disc Volume | States |
|---|---|---|
| 1 | 1 | CT, MA, ME, NH, RI, VT |
| 2 | 2 | NJ, NY, PR, VI |
| 3 | 3 | DC, DE, MD, PA, VA, WV |
| 4 | 4:1 | FL |
| 4:2 | AL, GA, KY, MS, NC, SC, TN | |
| 5 | 5 | IL, IN, MI, MN, OH, WI |
| 6 | 6 | AR, LA, NM, OK, TX |
| 7 | 7 | IA, KS, MO, NE |
| 8 | 8 | CO, MT, ND, SD, UT, WY |
| 9 | 9 | AZ, CA, HI, NV, PI |
| 10 | 10 | AK, ID, OR, WA |