Iowa does not require private employers to drug test anyone. What Iowa does have is one of the most detailed private sector testing statutes in the country, Iowa Code section 730.5. If an employer chooses to test, the statute spells out the written policy, the training supervisors need, which categories of testing are allowed, how confirmation and retesting work, and what happens if the employer gets any of it wrong. This article walks through those pieces in order, then covers how a positive test interacts with workers compensation under Iowa Code 85.16 and unemployment benefits under Iowa Code 96.5.
This is general compliance information, not a substitute for reading the statute itself or talking to counsel before a policy goes live. Employers should consult an attorney licensed in Iowa for guidance specific to their workforce.
Testing is optional, but once you test you are inside the statute
Section 730.5 states plainly that it does not create a legal duty to test and does not encourage or discourage testing one way or the other. It also does not apply to employees who are tested under federal statutes, federal regulations, or orders issued under federal law, such as drivers and other safety sensitive employees covered by the Department of Transportation's testing program under 49 CFR Part 40. For everyone else, if an Iowa employer sets up a drug or alcohol testing program, the mechanics of that program have to follow section 730.5, not an informal policy borrowed from another state.
The written policy and supervisor training
Every employer that tests must carry out testing within the terms of a written policy. The policy has to be provided to every employee subject to testing and made available for review by employees and applicants. If the person being tested is a minor, the employer has to give a copy of the policy to a parent and get a receipt or acknowledgment back, and certified mail with return receipt requested satisfies that requirement.
Supervisors who are involved with testing also need training. The statute requires a minimum of two hours of initial training before supervisory personnel can be involved in testing under this section, then a minimum of one hour of refresher training every year after that. The training has to cover recognizing evidence of alcohol and substance use disorder, documenting and corroborating what the supervisor observed, and referring employees to an employee assistance program or resource file.
What kinds of testing the statute allows
Section 730.5 lists specific circumstances under which an employer may test. The table below summarizes them as written in the statute.
| Testing trigger | Allowed under 730.5 | Key condition |
|---|---|---|
| Pre-employment (applicants) | Yes | May be conducted on prospective employees; written policy must be available for applicant review. |
| Unannounced or random | Yes | Must draw from one of three defined employee pools using a neutral, computer-based random selection process administered by an entity independent of the employer. |
| Reasonable suspicion | Yes | Must rest on specific, articulable facts and reasonable inferences, not a hunch. The statute lists examples such as observed impairment or a credible report. |
| Post-accident | Yes | Tied to a workplace accident that caused an injury reportable under Iowa Code chapter 88, or property damage reasonably estimated above one thousand dollars. |
| During or after rehabilitation | Yes | Follow-up testing connected to a substance use disorder rehabilitation agreement. |
| Required by federal law or law enforcement | Yes | Testing ordered under federal law or by law enforcement is a separate permitted category. |
| Hair testing | Limited | The statute allows hair testing of prospective employees only. |
| Routine or periodic physical exam | Not a listed category | Section 730.5 does not carve out a separate routine physical testing category. An employer with that goal should confirm which listed category actually applies. |
Certified labs, confirmation testing and the medical review officer
Testing has to go through a laboratory certified by the United States Department of Health and Human Services' Substance Abuse and Mental Health Services Administration, or approved under rules the department has adopted. Any initial positive result has to be confirmed before an employer can rely on it. For drugs, and for alcohol testing done outside the employer's own breath testing procedure, confirmation requires a different chemical process than the initial screen, such as gas chromatography and mass spectrometry or another comparably reliable method. A medical review officer, a licensed physician, osteopathic physician, chiropractor, nurse practitioner or physician assistant trained in substance use disorders, reviews the confirmed result together with the individual's medical history before it goes back to the employer. That review is where a legitimate prescription gets documented before any employment action happens. The Iowa Health and Human Services overview of private sector drug free workplace testing covers this process from the state's side.
Notice of a positive result and the employee's right to a second test
When a current employee's test comes back as a confirmed positive, the employer has to notify the employee in writing, by certified mail with return receipt requested, of the test result, the right to request a confirmatory test of the second portion of the original sample at an approved laboratory of the employee's choosing, and the fee the employee would owe for that second test. An employer may also offer in person exchange of written materials or electronic notification instead, but the employee picks the method.
The employee then has seven days from the date the employer mails that notice to request the second test, name an approved lab, and pay the fee. If the employee does that, the second test runs at the lab the employee picked, and the result goes back to the same medical review officer who reviewed the first confirmation. If the second test does not confirm the original positive, the employer has to reimburse the fee, and the original result cannot support discipline. For applicants rather than current employees, the notice is narrower: the result, the medical review officer's name and address, and the right to request records.
The alcohol standard employers set
If a written policy includes alcohol testing, the employer has to set its own concentration standard that counts as a policy violation. The statute puts a floor under that number: the standard cannot be set lower than .02, expressed as grams of alcohol per two hundred ten liters of breath, or its equivalent. An employer can set its own cutoff higher than .02 if it wants a stricter standard, but it cannot go below that floor.
The rehabilitation requirement for a first alcohol positive
Iowa law requires a rehabilitation option for a first confirmed alcohol positive, but only when every one of these conditions is met: the employer has at least fifty employees, the employee has worked there for at least twelve of the preceding eighteen months, the employee agrees to rehabilitation, and the employee has no prior policy violation under this section. When those conditions line up, the written policy has to offer rehabilitation instead of immediate discharge, and the statute sets the cost split. A benefit plan, if the employer has one, sets the split. With no benefit plan but partial health coverage, the health plan pays what it covers and the employee and employer split the remainder evenly, capped at two thousand dollars for the employer. Smaller employers and shorter tenured employees fall outside this specific mandate, though nothing stops voluntary rehabilitation.
Confidentiality and what happens if an employer gets it wrong
The statute limits what a lab, medical review officer and employer can use or disclose from a test to whether the person violated the policy, and a lab must dispose of negative sample material within five working days of reporting that result. A confirmed positive alone does not make someone a person with a disability under state or local law. An employer or lab that improperly discloses protected information, or manipulates the neutral selection process for unannounced testing, faces a civil penalty of one thousand dollars per violation, enforceable by the attorney general. Separately, an aggrieved employee or applicant can sue for reinstatement or hiring, back pay, other relief, and attorney fees, carrying the burden of proof by a preponderance of the evidence.
Workers compensation: the intoxication defense under Iowa Code 85.16
Iowa Code section 85.16 lets an employer avoid paying workers compensation for an injury caused by intoxication from alcohol or an unprescribed narcotic, depressant, stimulant, hallucinogenic or hypnotic drug, as long as the intoxication did not arise out of and in the course of employment and was a substantial factor in causing the injury. The statute builds in a presumption: if the employer shows a positive test result at the time of the injury or immediately after it, intoxication and its role in causing the injury are presumed. The burden then shifts to the employee to prove no intoxication, or that intoxication was not a substantial factor. A positive post-accident test under section 730.5 is the kind of evidence that can trigger this presumption, which is why the post-accident testing category and the intoxication defense are often discussed together.
Unemployment benefits: misconduct discharge under Iowa Code 96.5
Iowa Code section 96.5 disqualifies an individual from unemployment benefits when the individual was discharged for misconduct connected to the employment. Within the statute's list of what counts as misconduct, two items speak directly to substance use: consuming alcohol, illegal drugs, nonprescribed prescription drugs, or an impairing substance in a manner the manufacturer did not direct, on the employer's premises and in violation of the employer's policy, and reporting to work under the influence of those same substances on the premises in violation of policy, unless the employer compelled the individual to work outside scheduled hours. Whether a particular positive test or refusal actually meets the statute's misconduct standard, and whether disqualification follows, is a case specific determination made through Iowa's unemployment insurance appeals process, not an automatic result of a positive drug test. Employers should not assume a positive test automatically produces a benefits denial, and should expect the rule to be applied case by case.
Building a compliant program
A compliant Iowa program starts with a written policy that matches the categories actually permitted under section 730.5, supervisors who have logged their training hours, a SAMHSA certified or state approved lab for collection and confirmation, and a clear process for the certified mail notice and retest window. Employers sourcing cups, dip cards or oral fluid devices should work from a lab-grade drug test cup line and confirm with their lab how screening and confirmation will be documented. For how other states structure similar programs, see this overview of drug testing laws by state, and for how a positive result can affect insurance costs, see this explanation of workers compensation drug testing premium discounts.
Frequently asked questions
Does Iowa require private employers to drug test employees?
No. Iowa Code 730.5 states that it does not create a legal duty to test and does not encourage or discourage it. The statute only governs how testing has to work if an employer chooses to do it.
What alcohol concentration counts as a violation under Iowa law?
The employer sets its own policy standard, but the statute requires that standard to be no lower than .02 grams of alcohol per two hundred ten liters of breath, or the equivalent in another testing method. An employer can set a stricter number above that floor.
Can an employee get a second test after a positive result in Iowa?
Yes. After certified mail notice of a confirmed positive, the employee has seven days to request a confirmatory test of the second portion of the original sample at an approved lab of the employee's choice and pay the required fee. If that second test does not confirm the first result, the employer has to reimburse the fee and cannot treat the original result as a confirmed positive for discipline.
Does a positive drug test automatically disqualify an injured worker from Iowa workers compensation?
Not automatically. Iowa Code 85.16 creates a rebuttable presumption when an employer shows a positive post-accident test, but the employee can still try to overcome that presumption by showing there was no intoxication or that it was not a substantial factor in the injury.
Does Iowa Code 730.5 allow testing as part of a routine or annual physical exam?
The statute's list of permitted testing circumstances does not include a separate routine physical category. Employers who want to test in that setting should check whether reasonable suspicion, post-accident, rehabilitation follow-up, or another listed category actually applies, since the rule on this point is narrower than many employers assume.
Does a positive drug test automatically disqualify someone from Iowa unemployment benefits?
No. Iowa Code 96.5 lists substance use on the employer's premises in violation of policy as an example of disqualifying misconduct, but whether a specific case meets that standard is decided through Iowa's unemployment appeals process, not automatically from a lab result alone.
This article is general information about Iowa law as currently published by the Iowa Legislature. It is not legal advice. Employers should consult an attorney licensed in Iowa before adopting or changing a testing policy.
