On May 2, 2004, at the conclusion of the joint S-3A/3B conclave, both sections are combined into a new Section 3:
| Ema'o Mahpe 14 (from S-3A) |
| Wichita 35 (from S-3A) |
| Ma-Nu 133 (from S-3A) |
| Ta Tsu Hwa 138 (from S-3A) |
| Wisawanik 190 (from S-3A) |
| Washita 288 (from S-3A) |
| Nischa Achowalogen 486 (from S-3A) |
| Tejas 72 (from S-3B) |
| Mikanakawa 101 (from S-3B) |
| Quapaw 160 (from S-3B) |
| Wazhazee 366 (from S-3B) |
| Loquanne Allangwh 428 (from S-3B) |
| Gamenowinink 555 (from S-3B) |
| Wachtschu Mawachpo 559 (from S-3B) |
