Key Takeaways
- A specific Oklahoma statute governs testing: Private and public employers who choose to drug or alcohol test are governed by the Standards for Workplace Drug and Alcohol Testing Act, 40 O.S. §§ 551–563. Testing required by federal law or regulation is exempt from the Act.
- A written policy must come first: An employer must adopt a written testing policy before it can require a test, and must give employees at least ten days' notice before a new or changed policy takes effect.
- You have collection, privacy, and confirmation protections: Samples must be split for an independent re-test, urine collection generally cannot be directly observed, and a positive result must be confirmed by a second, more accurate method before it is used against you.
Being asked to take a drug test for a job in Oklahoma can feel like a yes-or-no demand with no rules attached. It is not. When a private or public employer in this state chooses to drug or alcohol test applicants or employees, a specific statute — the Standards for Workplace Drug and Alcohol Testing Act — sets out what the employer must do, how the sample must be handled, and what you are entitled to along the way.
This article explains those rules in plain terms. It is general information, not legal advice, and it does not cover testing that federal law separately requires. If you believe an employer ignored these rules in your case, the employment law team can look at the specific facts.
The Law That Applies
The controlling statute is the Standards for Workplace Drug and Alcohol Testing Act, codified at 40 O.S. §§ 551–563. A few framing points matter before the details.
First, the Act does not require or encourage employers to test. It says so directly: it "shall not be construed as requiring or encouraging employers to conduct drug or alcohol testing" (40 O.S. § 553(A)). But employers who do choose to test job applicants or employees in Oklahoma are governed by the Act and its rules.
Second, testing that is required by and conducted under federal law or regulation is exempt from the Act (40 O.S. § 553(C)). That carve-out matters for safety-sensitive transportation jobs governed by U.S. Department of Transportation rules, among others. If your testing is federally mandated, this state statute is generally not the framework that applies.
Third, the Act does not stop a union and employer from negotiating greater protection than the statute provides (40 O.S. § 553(D)). A collective bargaining agreement can add safeguards on top of the floor the statute sets.
When an Employer Can Test You
The Act lists the circumstances in which a public or private employer may request or require a test. An employer may only test under one of these categories (40 O.S. § 554):
The first is applicant and transfer or reassignment testing. An employer may test an applicant who has received a conditional offer, and may refuse to hire based on a refusal to test or a positive result. It may also test an employee who transfers or is reassigned to a different position.
The second is for-cause testing. An employer may test when it reasonably believes an employee may be under the influence of drugs or alcohol. The statute gives examples, including drugs or alcohol on or near the employee, conduct suggesting impairment, a report of use while on duty, evidence of tampering with a test, negative performance patterns, or excessive or unexplained absenteeism or tardiness.
The third is post-accident testing. An employer may require a test if the employee or another person was injured at work, or if property — including equipment — was damaged while at work. A positive post-accident test, or a refusal to take one, can also make an employee ineligible for workers' compensation benefits for that injury under 40 O.S. § 554.
The fourth is random testing. Private employers may test employees, or members of a job classification or group, at random. Public employers may use random testing only for certain categories of workers listed in the statute, such as police or peace officers, employees authorized to carry firearms, employees whose work directly affects the safety of others, and certain corrections and public-hospital staff.
The fifth is scheduled, fitness-for-duty, return-from-leave, and other periodic testing. This covers testing tied to a routinely scheduled fitness-for-duty exam, a return to duty from a leave of absence, or routine testing built into the employer's written policy. As with random testing, public employers may use this category only for the listed types of employees.
The sixth is post-rehabilitation testing. After a positive test or participation in a drug or alcohol treatment program, an employer may test an employee for up to two years from the return to work.
A Written Policy Must Come First
Before an employer can require a test, it must adopt a written policy that spells out the program (40 O.S. § 555(A)). The statute lists items the policy may include, such as which applicants and employees are subject to testing, the circumstances for testing, the substances covered, the testing and collection methods, the consequences of refusing, the potential personnel actions after a positive result, the employee's ability to explain the result in confidence, the ability to obtain copies of testing records, confidentiality requirements, and the available appeal procedures.
The policy is not just an internal formality. An employer that implements a testing policy or changes it must provide at least ten days' notice to employees, and must give a copy to each applicant on acceptance of employment (40 O.S. § 555(B)). The statute lists acceptable delivery methods, including hand delivery, mail, electronic transmission or posting on a company site, or posting in a prominent employee access area. If you were tested under a policy you never received, or under a change that took effect without the required notice, that is worth examining.
How the Sample Must Be Collected
The Act sets conditions for how samples are collected and tested (40 O.S. § 559). Several of these are protections for the person being tested.
Samples must be collected and tested only by individuals the State Board of Health deems qualified, under reasonable and sanitary conditions. The sample must be collected in enough quantity to be split into two separate specimens, so an independent analysis is possible if you later challenge the result.
Collection must be done with due regard for privacy. For urinalysis specifically, no employer or its representative may directly observe an applicant or employee producing a urine sample, though collection may be done in a way reasonably calculated to prevent substitution or interference. Collection must be documented, including labeling that reduces the chance of misidentification and an opportunity for you to note relevant information — such as currently or recently used prescription or nonprescription drugs.
Finally, a positive result cannot simply be acted on from a single screen. The Act requires that any positive be confirmed by gas chromatography, gas chromatography–mass spectroscopy, or an equivalent scientifically accepted method of equal or greater accuracy, at cutoff levels set by Board rule, before it is used as a basis to refuse to hire or to take action against an employee. A written chain-of-custody record must be maintained from collection until the sample is no longer needed.
Who Pays, and on Whose Time
Testing the employer requires is treated as work time for purposes of compensation and benefits for current employees, and the employer must pay the costs of the testing it requires (40 O.S. § 556).
There is one cost wrinkle worth knowing. If you want to challenge a positive result by requesting a confirmation test, and you ask for it within twenty-four hours of getting notice of the positive, you pay for that confirmation test — unless it reverses the positive finding. If the confirmation test reverses the result, the employer must reimburse you for the cost (40 O.S. § 556).
Your Privacy and Your Records
Drug and alcohol test records the employer keeps are the employer's property, but on your request they must be made available to you for inspection and copying (40 O.S. § 560(A)). Outside of limited exceptions, the employer generally may not release those records to anyone other than you or the review officer.
The statute does allow release in defined situations (40 O.S. § 560(B)): as evidence in a court or administrative proceeding where the employer or the tested individual is a named party, to comply with a valid judicial or administrative order, or to the employer's own staff who need the records to administer the Act. Separately, a testing facility or review officer may not disclose to the employer information about your general health, pregnancy, or other physical or mental condition learned from the sample (40 O.S. § 560(C)).
Consequences, and Your Remedy if the Rules Are Broken
The Act permits discipline. An employer's policy must state the disciplinary actions that may follow a refusal or a positive result, and the employer may take action up to and including discharge against an employee who refuses a test conducted in accordance with the Act or who tests positive (40 O.S. § 562).
But the Act also gives an employee a cause of action when an employer breaks its rules. A person aggrieved by a willful violation of the Act may file a civil action, and must do so within one year of the alleged willful violation or be barred from the relief the statute provides (40 O.S. § 563(A)). A willful violation requires proof, by a preponderance of the evidence, that the employer had a specific intent to violate the Act.
If a claim succeeds, the statute allows the prevailing party to recover lost wages the person would have been entitled to, plus an additional equal amount as liquidated damages, with interim earnings or amounts the person could have earned with reasonable diligence reducing the lost-wage recovery. Reasonable costs and attorney fees may be awarded to the prevailing party — and the statute allows that recovery whether the prevailing party is the employee or the employer (40 O.S. § 563(B)). That two-way fee provision is worth weighing before filing.
A Note on Medical Marijuana
This article is about the general Title 40 testing framework. Medical marijuana adds a separate layer of Oklahoma law for licensed patients, including limits on when a positive marijuana test alone can support discharge. Those questions are addressed in our companion article on whether you can be fired for medical marijuana in Oklahoma. Oklahoma's medical-marijuana employment rules are also an area of active change, so a current review of the specific facts is especially important there.
Frequently Asked Questions
Can my Oklahoma employer drug test me without warning?
An employer that tests must first have a written policy and must give employees at least ten days' notice of a new or changed policy (40 O.S. § 555). Within that framework, the Act allows several testing situations, including for-cause testing when the employer reasonably believes an employee may be impaired (40 O.S. § 554).
Can I be fired for refusing a drug test?
The Act allows an employer to take disciplinary action, up to discharge, against an employee who refuses a test conducted in accordance with the Act (40 O.S. § 562). Whether a particular test was conducted "in accordance with the Act" depends on the facts.
What if I think the test result is wrong?
The Act requires a positive to be confirmed by a more accurate method before it is used against you, and it requires samples to be split so an independent analysis is possible (40 O.S. § 559). You may also request a confirmation test within twenty-four hours of notice of a positive; you pay for it unless it reverses the result, in which case the employer reimburses you (40 O.S. § 556).
Does this law apply to federally regulated jobs?
Testing required by and conducted under federal law or regulation is exempt from the Act (40 O.S. § 553(C)). Some safety-sensitive roles are governed by federal rules instead of, or in addition to, this state statute.
How long do I have to bring a claim?
A civil action for a willful violation of the Act must be filed within one year of the alleged willful violation (40 O.S. § 563(A)). Other claims arising from the same situation may have different deadlines, so it is important to get specific advice promptly.
Tested at Work and Something Feels Off?
If an Oklahoma employer skipped the written policy, the notice, the confirmation test, or your records, we can review what happened.
Talk to an Employment LawyerLearn more about your employee rights under Oklahoma law and what to do if you were fired without warning or believe you faced workplace retaliation.
This article is for general information only and is not legal advice.




