A 4-panel drug test without THC is a urine screening that checks for cocaine, opiates, amphetamines, and PCP while leaving marijuana out of the results.
HOW IT WORKS:
Walk-in
15-Minute Lab Visit
Secure Same-Day
Results sent to you
Pre-Employment Drug Testing Without Marijuana (THC)
The law changed, and smart employers changed with it.
Since Arizona legalized recreational marijuana under the Smart and Safe Arizona Act (Proposition 207), many companies stopped screening for THC entirely—it shrinks the hiring pool without predicting on-the-job impairment for most roles.
A no-THC panel lets you keep a firm line on hard drugs while staying neutral on legal, off-the-clock cannabis use.
Stop losing great candidates to a panel your policy no longer needs.
This is the line most Arizona companies have already drawn.
What Drugs Does a 4-Panel No-THC Screen Detect?
Four substances, zero marijuana.
This urine screen checks for cocaine in all forms:
opiates such as heroin, morphine, and codeine; amphetamines and methamphetamine—including misused prescriptions like Adderall—and PCP.
THC is not on the panel, which means that marijuana use, whether recreational or medical, will never appear in the results.
The visit takes about 15 minutes from the moment the candidate sits down, and a negative rapid screen is ready before they leave.
Rapid Screen or Lab-Based:
One Gives You a Yes or No, One Gives You Levels
Both start with the same 15-minute walk-in visit.
They answer different questions. The rapid screen is a yes-or-no test—it reads the sample on-site against a set cutoff and tells you whether each substance is present or not. No numbers, no amounts, just a clear negative or non-negative in minutes. That's exactly what most pre-employment checks and workplace policies need: a fast, definitive answer.
The lab-based version measures actual levels.
The sample goes to a SAMHSA-certified laboratory where instruments quantify the precise concentration of each substance, not just whether it's there but how much. That's why courts, monitoring programs, and some corporate policies require it: a measured number carries a weight a yes-or-no can't, and on employer-ordered testing, MRO prescription verification is included so a lawful medication never reads as a failed result.
If your policy or a third party specifies "instant" or "lab," make sure the paperwork matches.
If nothing is specified, the rapid screen answers the question the same day—and if it ever comes back non-negative,
The lab-level results are available in about 24-48 hours.
MRO-Verified Results Protect You From Hiring Mistakes
A non-negative isn't a failed test—yet.
Amphetamines flag for ADHD prescriptions; opiates flag for legitimate pain medication.
That's why non-negative employer screens go to a CAP-accredited reference laboratory, where a Medical Review Officer independently verifies prescriptions before any result reaches you—confirmed results delivered within 24–48 hours.
You never see a "positive" that's actually a lawful prescription, which protects your company from a discrimination claim and protects a suitable candidate from a wrongful disqualification. With one process, both liabilities are closed.
Rapid Walk-In Employer Drug Screens in Mesa
Set up an employer account with one phone call—and send candidates the same day.
Contact us today, and your account is active before your first candidate arrives. Your candidates clear fast, so your time-to-hire doesn't stall. Candidates present a valid government-issued photo ID at our Mesa walk-in lab — no appointment needed.
We manage collection documentation and results reporting on-site, and same-day testing means we report a negative screen the day you send them. Your onboarding timeline keeps moving.
4-Panel Drug Test FAQ
What does the 4-panel no-THC test screen for? Cocaine, opiates such as heroin and morphine, amphetamines including methamphetamine, and PCP. Marijuana is not included on this panel and will not appear on the result.
Do employers still test for weed in Arizona? Some do, many no longer do. Arizona's Smart and Safe Arizona Act legalized recreational marijuana but still allows employers to maintain drug-free workplace policies — so each company sets its own line. The no-THC panel exists for employers who screen for hard drugs without testing for cannabis.
What if I need a panel that includes THC? Choose our 5-Panel Drug Test — it screens the same four substances plus marijuana, and it's the standard most employers request. Check your requirement letter or call us and we'll match you to the right panel.
Can my company set up an account for ongoing testing? Yes — one phone call activates your employer account, and you can send candidates the same day.
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