How Long Does It Take to Get USCG Drug Test Results in Charleston SC? (DOT & Non-DOT Explained)

When it comes to drug testing, time and compliance are critical. Whether you’re an employer, commercial driver, or maritime professional, understanding how long drug test results take helps you plan ahead, meet regulations, and keep operations compliant.

At LaRoc Precision Testing, we provide mobile and on-site testing across North Charleston, Summerville, and the Lowcountry, serving the transportation,

companies, and maritime industries with fast, federally compliant results.

 Rapid Non-DOT Drug Testing - Results in as Little as 15 Minutes

For urgent needs, rapid non-DOT testing offers quick, reliable screening for AMP (Amphetamine), BUP (Buprenorphine), BZO (Benzodiazepines), COC (Cocaine), mAMP (Methamphetamine), MDMA (Ecstasy), MTD (Methadone), MOP (Morphine), OXY (Oxycodone), and THC (Tetrahydrocannabinol).

Turnaround time: 15–30 minutes.

Best for:

• Pre-employment and random screenings

• Reasonable suspicion or post-accident cases

• Workplace compliance and return-to-duty checks

  
  

Rapid testing provides instant insight but is considered preliminary. For regulated programs, confirmatory lab-based DOT or USCG testing is required.

⚓ USCG Drug Testing Charleston SC — Coast Guard & Maritime Compliance

For those working in the maritime industry, USCG (United States Coast Guard) drug testing in Charleston, SC, is required to maintain compliance with 49 CFR Part 40 regulations.

This testing applies to:

• Merchant Mariners

• Charter Captains and Boat Operators

• Maritime Employers and Vessel Owners

• Shipyard and Port Employees

All USCG-regulated individuals must participate in a DOT 5-panel drug test, conducted by a SAMHSA-certified laboratory and reviewed by a Medical Review Officer (MRO).

Turnaround time:

• Negative results: 24–48 hours

• Non-negative or positive: 3–5 business days (includes confirmation and MRO review)

  
  

At LaRoc Precision Testing, we provide mobile Coast Guard drug testing on-site for ports, marinas, and marine employers in Charleston, North Charleston, and surrounding areas, ensuring compliance without disrupting operations.

🧪 DOT and Non-DOT Lab-Based Drug Testing — Accuracy and Compliance

For commercial drivers, safety-sensitive employees, and corporate clients, lab-based testing ensures accuracy and compliance under 49 CFR Part 40 (DOT) and CR49 guidelines.

Typical turnaround times:

• DOT Urine Drug Tests: 24–48 hours (negatives) / 3–5 days (positives with MRO review)

• Non-DOT Lab Tests: 1–2 days (negatives) / +2–5 days (confirmations)

  
  

All tests maintain chain of custody documentation, verified collection procedures, and federal compliance.

🧭 Which Drug Test Is Right for You?

Testing Type	Turnaround	Best For	Legal/Regulated Use
Rapid Non-DOT	15–30 minutes	Employment, suspicion, or post-incident	Screening only
Lab Non-DOT	1–3 days	Employer or personal testing	Yes
DOT (Lab-Based)	1–5 days	Commercial, trucking, federal safety roles	Required by law
USCG (Lab-Based)	1–5 days	Maritime and Coast Guard compliance	Required by law

✅ Why Choose LaRoc Precision Testing

• Mobile and in-office collections

• Certified collectors for DOT, USCG, and non-DOT testing

• Secure, compliant chain of custody

• On-site marine testing for ports, ships, and employers

• Fast, reliable turnaround

• Service areas: North Charleston, Summerville, Goose Creek, and the Lowcountry

  
  

We help employers, mariners, and transportation professionals stay compliant, safe, and confident in their testing results.

⚠️ Disclaimer

Rapid test results are preliminary and not valid for DOT or USCG compliance. Confirmed lab-based testing through SAMHSA-certified laboratories and CR49/46 CFR Part 16 standards remains the official requirement. Timelines may vary depending on lab workload and specimen transport.

📞 Schedule Your DOT or USCG Drug Test Today

Need USCG, DOT, or Non-DOT drug testing in North Charleston or the Lowcountry?LaRoc Precision Testing offers on-site marine collections, mobile employer testing, and fast turnaround for all compliance programs.

📍 Call (843) 543-2533 or visit https://www.larocprecisiontesting.com to schedule your test today.