A genuinely specific seat belt rule
Oklahoma law permits evidence of seat belt nonuse in a civil suit, and courts must generally submit the question of seat belt use or nonuse to the jury — with one notable exception: this doesn't apply when the plaintiff is under 16. This is a real, distinctive wrinkle that can affect how a jury weighs a plaintiff's own conduct, separate from the question of who caused the accident itself.
Several liability, not joint and several
Since Oklahoma abolished joint and several liability effective November 1, 2011, under 23 O.S. § 15, a defendant is generally responsible only for paying their own proportional share of the damages — not a co-defendant's share as well. This matters practically when one defendant may have more resources than another to actually pay a judgment.
The multi-defendant comparison, precisely
Oklahoma's landmark 1978 decision in Laubach v. Morgan established that a plaintiff's fault is compared against the combined negligence of all defendants together, not against each one individually. In that case, a plaintiff found 30% at fault still recovered, because the combined fault of the two defendants (70%) exceeded his own share.
No ceiling on pain and suffering
Since the Oklahoma Supreme Court's 2019 decision in Beason v. I.E. Miller Services, there is no general statutory cap on noneconomic damages in an ordinary Oklahoma personal injury case. Once a fault percentage is established below the 51% bar, the resulting recovery for pain and suffering isn't subject to the kind of statutory ceiling still found in some other states.
Who ultimately decides
Comparative fault is raised as an affirmative defense, meaning the defendant bears the burden of proving the plaintiff's negligence contributed to the accident. If a case goes to trial, the jury weighs this evidence and reaches a fault percentage. In the far more common scenario of a negotiated settlement, the parties effectively work out this same comparison between themselves. See our Oklahoma comparative negligence calculator to see how sharply the outcome changes on either side of the 51% line.