The KBRA does not affect any Tribes' fishing or water rights. The KBRA does describe the terms for settling the three decades old water claims by the Klamath Tribes of Oregon.
The Tribes who sign the KBRA will agree not to assert a senior water rights claim against Klamath Irrigation Project if the United States fully funds the fisheries reintroduction plan described in the agreement, irrigation diversions are capped as described in the agreement, and all four dams are removed. If the bargained for benefits are not realized this agreement is nullified.(section 15.3 of KBRA).
This agreement to not assert a water claim is specific to irrigators on the Klamath Reclamation Project. The Irrigators' commitment to a diversion cap, increase in flows from tributaries upstream of Upper Klamath Lake, and increased natural storage in Upper Klamath Lake, will yield flows greater than the Klamath has seen in over 50 years.
For more on this topic see section on Tribal Trust.