| Adopted Regional Plan | The Regional Water Planning Group officially adopted their plans, prior to submission to the TWDB in January, 2001. |
| Approved Regional Plan | An adopted plan must be officially approved by the TWDB. Once approved, it is ready for incorporation into the Statewide plan |
| ED | Environmental Defense |
| IPP | Initially Prepared Plan |
| NWF | National Wildlife Federation |
| RWPG | Regional Water Planning Group |
| SB1 | Senate Bill 1 |
| SB2 | Senate Bill 2 |
| TCEQ | Texas Commission on Environmental Quality |
| TCPS | Texas Center for Policy Research |
| TPWD | Texas Parks and Wildlife Department |
| TWDB | Texas Water Development Board |