National Testing Services Contact

Drug testing in New Hampshire

State laws, marijuana laws, and employer compliance

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

New Hampshire drug testing laws

Governing law

New Hampshire Therapeutic Cannabis Program; federal DOT drug testing regulations; federal drug-free workplace standards

What you can do

Employer rights

  • Pre-employment testing allowed
  • Reasonable suspicion testing lawful
  • Post-accident testing allowed
  • Random testing may be allowed under employer policy
  • Return-to-duty and follow-up testing allowed
  • Employers may ban workplace drug use and impairment
  • Employers may discipline policy violators
What you must do

Compliance requirements

  • Maintain written testing policies
  • Apply procedures consistently and fairly
  • Use certified labs
  • Communicate testing and discipline rules clearly
  • Train supervisors to spot impairment
  • Follow federal DOT rules when required

Cannabis

New Hampshire marijuana laws

Recreational · Illegal

Recreational use

  • Not legalized
  • Recreational use remains illegal under state law
Medical · Legal

Medical use

  • Legal for qualified patients under the state's Therapeutic Cannabis Program
At work

Workplace impact

  • Employers may still prohibit impairment, enforce drug-free policies, and discipline employees impaired during work hours
  • Safety-sensitive and federally regulated positions face strict federal requirements
  • DOT-regulated employers must follow federal testing law
  • Marijuana remains federally illegal

Best practices

Staying compliant in New Hampshire

Develop detailed written drug-free policies
Define impairment standards clearly
Train supervisors on impairment indicators
Monitor New Hampshire cannabis law changes
Use certified providers
Apply testing consistently and fairly

Our services

Testing services in New Hampshire

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. New Hampshire Department of Labor
  2. NH Therapeutic Cannabis Program
  3. New Hampshire General Court
  4. U.S. DOT Drug & Alcohol Testing Regulations
  5. 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 New Hampshire?

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