Okla. Stat. tit. 40, § 563

A. Any person aggrieved by a willful violation of the Standards for Workplace Drug and Alcohol Testing Act may institute a civil action in a court of competent jurisdiction within one (1) year of the alleged willful violation or be barred from obtaining the relief provided for in subsection B of this section. A willful violation of the Standards for Workplace Drug and Alcohol Testing Act requires proof by the preponderance of the evidence that the employer had a specific intent to violate the act. B. A prevailing party may be awarded lost wages to which the person would have been entitled and an additional equal amount as liquidated damages. Interim earnings or amounts earnable with reasonable diligence by the aggrieved person shall operate to reduce the lost wages otherwise allowable. Reasonable costs and attorney fees may be awarded to the prevailing party, whether plaintiff or defendant.