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Drug testing in Mississippi

State laws, marijuana laws, and employer compliance

Recreational marijuana: IllegalMedical marijuana: LegalDOT rules apply nationwide
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For employers

Mississippi drug testing laws

Governing law

Mississippi Code Title 71, Chapter 7 (Drug and Alcohol Testing of Employees); Mississippi Medical Cannabis Act

What you can do

Employer rights

  • Pre-employment testing is permitted
  • Random testing is allowed
  • Reasonable suspicion testing is lawful
  • Post-accident testing is authorized
  • Return-to-duty and follow-up testing are permitted
  • Employers may refuse to hire or terminate over positive results
  • Drug-free workplace policies are voluntary but legally supported
What you must do

Compliance requirements

  • Keep written drug and alcohol testing policies
  • Notify applicants and employees in writing
  • Use certified laboratories
  • Follow confirmatory testing procedures
  • Apply policies consistently and without discrimination

Mississippi specifics

Workers' Compensation and Drug Testing

  • Post-injury drug testing is allowed
  • A positive result may create a presumption affecting a claim (Section 71-3-121)

Cannabis

Mississippi marijuana laws

Recreational · Illegal

Recreational use

  • Still prohibited
  • Unauthorized possession may bring criminal penalties
Medical · Legal

Medical use

  • Legal under the Mississippi Medical Cannabis Act for qualifying patients with state approval
At work

Workplace impact

  • Employers are not required to accommodate medical marijuana use
  • Employers may enforce zero-tolerance policies
  • Medical cardholders generally have no job protection for positive tests
  • Employers may discipline for on-duty impairment or positive results under written policy

Best practices

Staying compliant in Mississippi

Establish written drug-free workplace policies
Provide employee and applicant notice
Use certified testing providers
Track medical marijuana law changes
Enforce policies consistently
Consult legal counsel when updating policies

Our services

Testing services in Mississippi

NTS provides accurate, confidential, and legally defensible testing through our nationwide collection network.

Urine drug testingHair follicle testingOral fluid (saliva) testingNail drug testingDOT drug and alcohol testingCourt-ordered testingRandom and pre-employment screening

Sources & legal references

  1. Mississippi Code Title 71, Chapter 7
  2. Mississippi Medical Cannabis Program
  3. Mississippi Workers' Compensation Drug Testing Law, Section 71-3-121
  4. Mississippi Administrative Code, Drug and Alcohol Testing (Section 27-120-5-12)
  5. U.S. DOT Drug & Alcohol Testing Regulations
  6. NCSL Marijuana Laws by State

Laws change often. This page is general information, not legal advice. Check official state agencies or consult legal counsel for current requirements.

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Testing employees in Mississippi?

Call the office to set up a compliant program, or schedule onsite collections.

Office601-602-2445 Onsite601-633-7733
Visit1520 Adeline St, Ste. 20, Hattiesburg, MS 39401