North Carolina does not require most private employers to run a drug testing program, but once an employer decides to test, state law sets out how the testing has to be done. The rules live in the Controlled Substance Examination Regulation Act, a short article of the North Carolina General Statutes that the North Carolina Department of Labor enforces through its Wage and Hour Bureau. This guide walks through what the Act actually requires, how it interacts with workers compensation and unemployment law, and where North Carolina stands on marijuana and hemp, so an employer building or auditing a testing program knows what the primary sources say instead of relying on secondhand summaries.
The Controlled Substance Examination Regulation Act, in plain terms
The Act is codified at N.C. Gen. Stat. 95-230 through 95-235. The stated purpose is to protect people from unreliable or inadequate drug screening while still letting employers choose from a range of cost-effective testing technologies. It applies to any "examiner," a term the statute defines broadly to include private businesses as well as state, county, and municipal employers, when that examiner requests or requires an "examinee," meaning a current employee or an applicant, to submit to a controlled substance examination.
The North Carolina Department of Labor's own summary confirms that the Wage and Hour Bureau is the enforcing agency and that the Act's purpose is procedural: it does not create a right or a duty to test, it regulates how testing has to happen once an employer chooses to test. That summary is posted on the NCDOL drug testing page.
Approved laboratories and who can perform which test
The statute draws a sharp line between screening applicants and screening current employees. Under N.C. Gen. Stat. 95-232(c), a preliminary screening procedure using a single-use test device, the kind of cup or dip card used at the point of collection, may be used for prospective employees. Screening of current employees, however, must be performed by an approved laboratory rather than a single-use device alone. An approved laboratory is defined in 95-231 as a clinical chemistry lab that has demonstrated satisfactory performance in the forensic urine drug testing programs run by the U.S. Department of Health and Human Services or the College of American Pathologists.
| Requirement | Applicant screening | Current employee screening |
|---|---|---|
| Who may perform the initial screen | Single-use test device permitted on site or at a lab | Must be performed by an approved laboratory |
| Confirmation of a positive screen | Required by gas chromatography with mass spectrometry or an equivalent method, unless the applicant signs a written waiver | Required by gas chromatography with mass spectrometry or an equivalent method, no waiver provision in the statute |
| Sample retention after a confirmed positive | At least 90 days from when results are delivered to the examiner | At least 90 days from when results are delivered to the examiner |
| Retest rights | Examinee may request retesting of the retained sample at the same or another approved lab, at the examinee's expense | Same right applies |
Collection, chain of custody, and confirmation
Section 95-232(b) requires that sample collection happen under reasonable and sanitary conditions and that individual dignity be preserved to the extent practicable, with samples collected in a way that is reasonably calculated to prevent substitution or interference. The examiner or its agent has to establish chain of custody procedures under 95-232(e) that cover record keeping, handling, labeling, and identification of every sample. If a screening test on an applicant or a current employee comes back positive, the confirmation step is not optional except in the narrow applicant waiver scenario described above. That confirmation has to use gas chromatography with mass spectrometry or an equivalent scientifically accepted method, which is why American Screening builds its testing programs around an initial cup or dip card screen paired with a lab confirmation step for any nonnegative result, rather than treating a rapid screen alone as a final result.
No duty to test, and the federal exemption
Two shorter provisions matter for scope. Section 95-233 states plainly that nothing in the Act places a duty on employers to conduct controlled substance examinations at all, so a North Carolina employer that chooses not to test is not violating state law by skipping it. Section 95-235 exempts controlled substance examinations required by the United States Department of Transportation or the United States Nuclear Regulatory Commission from the Act, since those examinations already follow their own federal testing framework.
Civil penalties for violating the Act
Section 95-234 gives the Commissioner of Labor authority to assess a civil penalty of up to 250 dollars per affected examinee, capped at 1,000 dollars per investigation, for a violation of the Act's procedural requirements. In setting the amount, the Commissioner is directed to weigh the size of the employer's business and the gravity of the violation. An employer that receives notice of a determination has a limited window to contest it before the penalty becomes final, with further review available through the state's administrative hearings process. This is a modest penalty structure compared to some other states, but it is a real enforcement mechanism, not a symbolic one, and it applies on a per-examinee basis so repeated procedural shortcuts add up.
Confidentiality and recordkeeping
The Act itself does not contain a separate, stand-alone confidentiality clause the way some states' drug testing statutes do. Its privacy protection is built into the collection and chain of custody requirements in 95-232, which call for procedures that preserve individual dignity and for records that document who handled a sample at each step. Employers that want stronger confidentiality controls, such as limiting who inside the company sees results or how long records are kept beyond the statutory 90-day sample retention window, generally build that into their own written policy rather than relying on the statute to spell it out, since the statute is focused on the mechanics of testing rather than on internal recordkeeping rules.
Workers compensation: the intoxication defense
North Carolina's workers compensation law gives employers a defense, not an automatic bar, when a work injury is tied to intoxication or unauthorized controlled substance use. Under N.C. Gen. Stat. 97-12, no compensation is payable if the injury or death was proximately caused by the employee's intoxication (provided the employer did not supply the intoxicant), by the employee being under the influence of a controlled substance listed in the North Carolina Controlled Substances Act without a valid prescription, or by the employee's willful intent to injure themselves or someone else. The statute also sets up a rebuttable presumption: a blood or other medical test result consistent with intoxication or being under the influence, if conducted in a manner generally accepted by the scientific community and consistent with applicable law, creates a presumption of impairment. The burden of proving the exemption falls on whichever party claims it, and the presumption can be rebutted, so a positive result is evidence in the case rather than an automatic denial.
Unemployment insurance: a positive test as misconduct
North Carolina's unemployment statute treats a positive drug test differently from workers compensation. Under N.C. Gen. Stat. 96-14.6, a worker who is separated for misconduct connected with the work is disqualified from unemployment benefits. The statute lists specific examples that count as prima facie evidence of misconduct, meaning the burden shifts to the claimant to rebut them: violation of the employer's written alcohol or illegal drug policy, reporting to work significantly impaired by alcohol or illegal drugs, and consumption of alcohol or illegal drugs on the employer's premises are all listed by name. That makes a clearly written, consistently applied drug policy a practical asset beyond the testing statute itself, since it is the policy language that the unemployment examples point back to.
Marijuana and hemp status under North Carolina law
North Carolina classifies marijuana as a Schedule VI controlled substance under N.C. Gen. Stat. 90-94, along with tetrahydrocannabinols generally. The statute carves out one exception: products with a delta-9 tetrahydrocannabinol concentration of three-tenths of one percent or less on a dry weight basis, the federal hemp threshold, are excluded from the schedule. The statute's schedule VI exception is written for hemp-compliant products, not for medical or recreational marijuana use, and it does not create a medical marijuana registry or authorization program. Because state law does not protect off-duty or medical marijuana use the way some other states now do, a confirmed positive result for THC generally remains a lawful basis for an adverse employment action under North Carolina law, though employers should still apply their policy consistently and document the testing process under the Act described above. Where an applicant or employee raises a prescription medication, the standard practice is to route the result through a medical review officer before any employment decision, and never to assume what an over-the-counter or prescription product will or will not produce on a screen.
Building a compliant program
A North Carolina employer that wants a defensible program generally needs three pieces working together. First, a written policy that states the substances tested, the consequences of a positive result or a refusal, and how the program treats prescription medications, since that policy is what the unemployment misconduct examples and any internal discipline process point back to. Second, a collection method that matches the statute's applicant versus current employee distinction, meaning a single-use cup or dip card for point-of-collection screening and a confirmed approved-laboratory result before any adverse action is finalized on a nonnegative screen. Third, documentation of chain of custody and sample retention so that if an examinee exercises the statutory right to a retest, the paperwork already supports it. None of this requires guessing at what the law says. The statute text and the Department of Labor's own program page are both public and specific about what has to happen at each step.
Frequently asked questions
Does North Carolina require private employers to drug test employees?
No. Section 95-233 of the Controlled Substance Examination Regulation Act states that the Act does not place a duty on employers to conduct controlled substance examinations. Employers that choose to test still have to follow the Act's procedural requirements.
Can a North Carolina employer use an on-site urine cup or dip card for pre-employment screening?
Yes, for applicants. Section 95-232(c) allows a single-use test device to be used for preliminary screening of prospective employees. Screening of current employees has to be performed by an approved laboratory rather than a device alone.
What confirms a positive drug test result under North Carolina law?
A positive screening result generally has to be confirmed by an approved laboratory using gas chromatography with mass spectrometry or an equivalent scientifically accepted method, under Section 95-232(c1). Applicants may waive confirmation in writing after receiving a preliminary positive result; that waiver option is not written into the statute for current employees.
Can a North Carolina employee lose workers compensation benefits after a positive drug test?
Not automatically. N.C. Gen. Stat. 97-12 allows an employer to raise intoxication or unauthorized controlled substance use as a defense to a workers compensation claim, and a qualifying test result creates a rebuttable presumption of impairment. The burden of proof is on the party claiming the defense, and the presumption can be rebutted.
Does a positive drug test disqualify a worker from North Carolina unemployment benefits?
It can factor into a misconduct disqualification. Under N.C. Gen. Stat. 96-14.6, violating a written drug policy, reporting to work significantly impaired, or using drugs on the employer's premises are each listed as prima facie evidence of misconduct connected with the work, which can lead to disqualification unless the claimant rebuts it.
Is marijuana legal for medical use in North Carolina?
State law does not establish a medical marijuana program. N.C. Gen. Stat. 90-94 lists marijuana and tetrahydrocannabinols as Schedule VI controlled substances, with an exception only for hemp-compliant products at or below three-tenths of one percent delta-9 THC by dry weight.
For a broader look at how these rules compare across the country, see Workplace Drug Testing Laws by State, and for the workers compensation angle specifically, see Workers Comp Drug Testing Premium Discounts. American Screening supplies the single-use cups and dip cards that fit the Act's applicant screening step, along with lab confirmation services for any nonnegative result; browse the drug test cup collection to build a program around the confirmed approved-laboratory workflow described above.
This article is general information about North Carolina law, not legal advice. Employers should confirm current requirements with qualified counsel before adopting or changing a testing policy.