KLAMATH FALLS, Ore. - Last Thursday, the United States Court of Appeals issued a decision that denies Klamath Project irrigators the right to challenge federal agency decisions in court. The ruling, in a case titled Klamath Irrigation District, et al. v. United States, et al., found that irrigation parties could not file legal challenges to federal agency actions or decisions that the irrigators believe are unlawful, unless tribes in the Klamath Basin voluntarily agree to join the case as parties.