Drug & Alcohol Testing Near Me - Princeton, NJ

Accredited Drug Testing provides drug and alcohol testing services at multiple locations throughout your local area.  

Employment, DOT, Court Ordered, Personal
Urine | Hair Follicle | Oral Fluid | Blood | ETG

32 Drug-Testing Centers in Princeton

Minutes Away, Test Today

601 Ewing St, Suite C-221.52 miles

601 Ewing St, Suite C-22
Princeton, NJ 8540

5 Plainsboro Rd Ste 5703.19 miles

5 Plainsboro Rd Ste 570
Plainsboro, NJ 8536

168 Franklin Corner Rd, Bldg. 2, Suite 1d5.63 miles

168 Franklin Corner Rd, Bldg. 2, Suite 1d
Lawrenceville, NJ 8648

4105 Us Highway 1 Ste 16.38 miles

4105 Us Highway 1 Ste 1
Monmouth Junction, NJ 8852

2500 Us Highway 17.34 miles

2500 Us Highway 1
Lawrenceville, NJ 8648

811 Highway 338.22 miles

811 Highway 33
Hamilton, NJ 8619

2222 Highway 33 Ste H8.58 miles

2222 Highway 33 Ste H
Hamilton, NJ 8690

3 Liberty St, Suite 10168.70 miles

3 Liberty St, Suite 1016
Plainsboro, NJ 8536

1 Washington Blvd Ste A8.84 miles

1 Washington Blvd Ste A
Robbinsville, NJ 8691

832 Brunswick Ave9.09 miles

832 Brunswick Ave
Trenton, NJ 8638

2 Hamilton Health Pl9.14 miles

2 Hamilton Health Pl
Hamilton, NJ 8690

750 Brunswick Ave9.24 miles

750 Brunswick Ave
Trenton, NJ 8638

1670 Whitehorse Hamilton Square Rd9.55 miles

1670 Whitehorse Hamilton Square Rd
Hamilton, NJ 8690

1255 Whitehorse Mercerville Rd9.73 miles

1255 Whitehorse Mercerville Rd
Mercerville, NJ 8619

1225 Whitehorse Mercerville Rd, Suite 2019.75 miles

1225 Whitehorse Mercerville Rd, Suite 201
Hamilton, NJ 8619

1544 Kuser Rd Ste C99.90 miles

1544 Kuser Rd Ste C9
Trenton, NJ 8619

601 Hamilton Ave10.13 miles

601 Hamilton Ave
Trenton, NJ 8629

2 Centre Dr Ste 40010.33 miles

2 Centre Dr Ste 400
Monroe, NJ 8831

333 Forsgate Drive, Ste 20311.08 miles

333 Forsgate Drive, Ste 203
Jamesburg, NJ 8831

1085 Cranbury South River Rd Ste 211.63 miles

1085 Cranbury South River Rd Ste 2
Jamesburg, NJ 8831

49 Veronica Ave, Ste 20312.26 miles

49 Veronica Ave, Ste 203
Somerset, NJ 8873

303 Omni Dr12.26 miles

303 Omni Dr
Hillsborough, NJ 8844

10 Costco Dr12.29 miles

10 Costco Dr
Monroe, NJ 8831

6 Fellen Pl12.58 miles

6 Fellen Pl
Hillsborough, NJ 8844

561 Cranbury Rd13.07 miles

561 Cranbury Rd
East Brunswick, NJ 8816

620 Cranbury Rd13.09 miles

620 Cranbury Rd
East Brunswick, NJ 8816

579 Cranbury Rd Ste A13.14 miles

579 Cranbury Rd Ste A
East Brunswick, NJ 8816

403 Us Highway 20214.61 miles

403 Us Highway 202
Flemington, NJ 8822

636 Easton Ave14.68 miles

636 Easton Ave
Somerset, NJ 8873

301 Oxford Valley Rd Ste 110414.76 miles

301 Oxford Valley Rd Ste 1104
Yardley, PA 19067

701 Floral Vale Blvd Ste 70114.76 miles

701 Floral Vale Blvd Ste 701
Yardley, PA 19067

304 Floral Vale Blvd14.88 miles

304 Floral Vale Blvd
Yardley, PA 19067

Drug Testing Near Me

If you're in search of drug testing locations near me, then look no further! Accredited Drug Testing, Inc. stands out as a leading, reliable provider of same-day drug and alcohol testing services, administering screenings across a broad network of over 20,000 facilities nationwide, including in Princeton, NJ. Whether it's a DOT-compliant test, a court-mandated evaluation, a pre-employment drug screening, or an individual personal test, we ensure a hassle-free, discreet scheduling process. Our certified collection sites and state-of-the-art laboratories deliver precise, compliant results that adhere strictly to both federal and state regulations. For ease of use, simply call (800) 221-4291 or schedule effortlessly online, 24/7, and locate a nearby drug testing center that best suits your needs. When prioritizing safety, regulatory compliance, and peace of mind, Accredited Drug Testing ensures punctual, dependable results every time.

Drug and Alcohol Testing Options

Urine Drug Testing Available Panels
5 Panel Drug Test (DOT/NON DOT)
5 Panel + Alcohol Drug Test
5 Panel + ETG Alcohol Drug Test
10 Panel Drug Test
10 Panel + ETG Alcohol Drug Test
12 Panel Drug Test
Hair Drug Testing Available Panels
5 Panel Hair Drug Test
5 Panel + ETG Hair Drug Test
10 Panel Hair Drug Test
12 Panel Hair Drug Test
14 Panel Hair Drug Test
16 Panel Hair Drug Test
Alcohol Drug Testing Available Panels
Alcohol Urine Drug Test
ETG Alcohol Test (Urine)
Breath Alcohol Test
Blood Alcohol Test
Peth Alcohol Blood Test
ETG Alcohol Test (Hair)

Customized Testing Options Available l Discounts available for Bulk Purchases l Onsite Drug Testing Services

How Urine Drug Testing Works

In Princeton, NJ, urine drug testing represents the most commonly adopted screening technique across the United States and remains the sole approved method for DOT-regulated testing under 49 CFR Part 40. This technique tests for recent substance use by examining urine samples for drugs, drug metabolites, or alcohol biomarkers. It is conducted within standardized guidelines, ensuring privacy while delivering accurate and legally justifiable results suitable for employers, individuals, and court-mandated programs.

Testing Procedures & Collection Process

  • Verification of Donor Identity: The donor must present a valid government-issued ID and finish mandatory chain-of-custody documents before the commencement of testing.
  • Controlled Collection Environment: Urine samples are collected in a controlled restroom to prevent tampering, with personal items restricted, water sources secured, and toilet water colored to prevent sample alteration.
  • Chain of Custody Documentation: The Chain of Custody Form (CCF), federally recognized, meticulously traces the sample from collection to lab, ensuring result integrity and legal viability.
  • Temperature & Validity Checks: Post collection, both specimen temperature and appearance are checked. The laboratory also undertakes validity testing, including checks for creatinine levels, pH, specific gravity, and the presence of adulterants.
  • DOT Split Specimen: For DOT urine testing, samples are divided into two vials - Bottle A for primary testing and Bottle B reserved for retesting if the donor contests the result. Non-DOT tests use a single vial.
  • Laboratory Screening & Confirmation: Samples processed in SAMHSA-certified labs undergo a two-step testing: Initial Immunoassay Screen for detecting drug classes, followed by GC/MS or LC/MS confirmation testing for precise identification.
  • MRO Verification: A certified Medical Review Officer reviews non-negative findings, verifying their accuracy and discussing potential medical reasons with the donor before finalizing and releasing results.

How Long Do Urine Test Results Take?

Additional time may be required for shy bladder situations, invalid specimens, or if laboratory confirmation or donor contact is needed.

Benefits of Urine Drug & Alcohol Testing

Despite these limitations, urine testing remains the most practical and widely used method for drug and alcohol screening nationwide.

How Hair Drug Testing Works

Hair Drug Testing in Princeton, NJ

Hair drug and alcohol testing is recognized as a highly trusted laboratory technique for identifying long-standing substance use habits. Contrary to urine testing, which detects recent consumption, hair testing extends a substantial 90-day detection period by examining drug metabolites ingrained within the hair fiber. This distinctive capability makes it an apt choice for employment testing, legal disputes, child custody evaluations, and any circumstance necessitating a prolonged assessment of personal substance use history.

Testing Methods & Collection Process

Timing for Hair Test Outcomes

Though laboratory processing entails a slightly extended timeframe compared to urine testing, the unparalleled consistency achieved via hair testing is noteworthy.

Pros of Hair Drug & Alcohol Testing

Despite certain downsides like inability to detect very recent use and a higher cost, hair testing prevails as a consistently reliable choice, heavily employed by employers, legal entities, and individual applicants pursuing accurate, tamper-resistant results.

Alcohol & Drug Testing-How Each Method Works

In Princeton, NJ, Accredited Drug Testing specializes in a comprehensive spectrum of alcohol and drug testing solutions, tailored to meet the varied demands of employers, DOT mandates, legal contexts, and personal testing criteria. Knowledge of each test's mechanics ensures informed selections, reliable outcomes, and adherence to federal and state protocols. Our vast nationwide network, alongside our certified location labs and specialized Medical Review Officers, underscores our commitment to providing trustworthy and precise testing results.

Alcohol Urine Drug Test

An alcohol urine test identifies recent alcohol intake by detecting ethanol byproducts. Its main applications include workplace testing, legal mandates, and post-incident examinations. Although it doesn't measure current intoxication levels, it supplies a brief detection period within several hours, making it an economical choice for screening purposes.

ETG Alcohol Test (Urine)

The EtG urine test is notable for its sensitivity, capable of identifying alcohol use up to 80 hours post-consumption. With EtG serving as a precise ethanol byproduct, it is extensively employed by courts and rehabilitation programs, offering a broader detection span than traditional urine alcohol tests while maintaining high accuracy and reliability.

Breath Alcohol Test

A breath alcohol test determines current impairment levels through alcohol analysis in deep lung air, utilizing DOT-approved breathalysers (EBTs). These tests provide instantaneous results that are legally sound, essential for DOT-regulated employee screening and frequently utilized for workplace assessments following incidents of reasonable suspicion.

Blood Alcohol Test

The blood alcohol test measures ethanol levels in the bloodstream, recognized for its precision, making it a preferred method among hospitals, law enforcement, and legal practitioners, especially for cases involving suspected DUI, emergency response, and complex legal proceedings.

PEth Alcohol Blood Test

A PEth blood test delves into chronic or heavy alcohol usage by identifying particular biomarkers within red blood cells, detecting alcohol consumption for 2-3 weeks thereafter. It's a credible indicator for long-term exposure, prominently used in family law, monitoring initiatives, treatment centers, and in the safety-first spans of pre-employment screenings.

ETG Alcohol Test (Hair)

The EtG hair test evaluates alcohol biomarkers embedded in hair for a duration of 90 days, apt for discerning prolonged alcohol use patterns over singular events. Its stability and resistance to short-term abstinence make it invaluable to courts, custody disputes, and sustained monitoring programs.

Accredited Drug Testing, leveraging expert assistance, certified laboratory support, and expeditious scheduling, assures that every alcohol testing protocol results in unequivocal, transparent, and regulation-compliant outcomes, supporting individual and organizational needs for assurance, safety, and compliance within a structured regulatory framework.


Accredited Drug Testing provides nationwide drug and alcohol screening solutions, including urine, hair, EtG, PEth, and breath alcohol testing. Backed by SAMHSA-certified laboratories, DOT 49 CFR Part 40 compliance, and scientifically validated testing technology, our services ensure accurate, defensible, and confidential results for employers, courts, and individuals.

Frequently Asked Questions

Urine tests detect recent use and are the only option approved for DOT testing under 49 CFR Part 40. Hair tests provide a 90-day detection window per the Society of Hair Testing (SoHT). Alcohol testing options, EtG, breath, blood, or PEth. These tests can identify recent use, impairment, or long-term drinking behavior depending on the method.

Urine: 24 - 48 hrs for negatives (SAMHSA guidelines).
Hair: 2 - 5 business days due to multi-step forensic processing (SoHT).
Breath Alcohol: Immediate results using NHTSA-approved EBT devices.
PEth: 3 - 5 days based on forensic toxicology studies.

Lab confirmation using GC/MS or LC/MS is the gold standard per SAMHSA & DOT.
Hair testing is highly tamper-resistant (SoHT).
PEth is considered the most reliable marker of repeated drinking (Journal of Analytical Toxicology).

No. DOT-regulated urine tests require validity checks and chain-of-custody documentation (49 CFR Part 40). Hair tests undergo decontamination and metabolite extraction (SoHT), making them extremely difficult to adulterate.

EtG urine detects alcohol for up to 80 hours (NIH/SAMHSA studies). EtG hair detects chronic alcohol consumption for up to 90 days (SoHT alcohol guidelines).

5 Panel DOT:49 CFR Part 40. Expanded non-DOT panels add benzodiazepines, barbiturates, methadone, oxycodone, MDMA, fentanyl, and more (SAMHSA forensic panel standards).

PEth blood testing identifies long-term and heavy alcohol use for 2 - 4 weeks. Used in child custody, treatment monitoring, and professional compliance programs (CDC & Journal of Analytical Toxicology).

Hair testing does not detect drug use within the past 5 - 7 days. It identifies long-term or repetitive use patterns per SoHT standards.

Yes. Results follow strict chain-of-custody procedures, DOT/SAMHSA requirements, GC/MS or LC/MS confirmation, and MRO review; making them acceptable in court, DOT, and legal settings.

Yes. Accredited Drug Testing offers same-day appointments at 20,000+ locations nationwide, instant testing options, and onsite employer testing with bulk discounts.

Customer Reviews

Fast and easy

It was fast and easy a pleasure to talk to the customer service people great service

Peter Villegas - 1/19/2025

A very nice company

A very nice company of expertise. The staff will go above to help you out of your situation in a timely matter 👏

Tam Jack - 2/19/2025

they have made my job much easier

I always have a good experience setting up company driver drug screens through ADT. I'm really happy I found them while searching online, they have made my job much easier.

Exodus Heath - 2/13/2025

Very Fun and Easy

Trish last week and Tatiana this week, very fun and easy folks to deal with. Well be using them more and more in the future.

Tom O - 12/19/2024

Fast and efficient service

Fast and efficient service for employers wanting to do pre employment drug screening that meets DOT requirements!!

Mary Thomas - 4/5/2025


Sources


Princeton Drug Testing

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Princeton DOT Drug Testing

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Princeton DNA Testing

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Princeton Industry Training

Including specimen collector training, DER training, reasonable suspicion training and much more in Princeton, NJ.v

Princeton Hair Drug Testing

Get fast, accurate hair drug testing at our convenient Princeton, NJ locations—results you can trust, every time!

Princeton Alcohol Testing

Fast, reliable alcohol testing to keep your workplace safe and compliant every single day in Princeton, NJ.

Princeton Drug Testing Services

Reliable nationwide drug testing services ensuring accuracy, compliance, and quick results for businesses and individuals in Princeton, NJ.

Princeton 5 Panel Drug Test

Accurate 5 panel drug testing with fast, confidential results—trusted by Princeton, NJ employers and individuals nationwide.

Princeton 10 Panel Drug Test

Comprehensive 10 panel drug testing with fast, reliable results—trusted for Princeton, NJ workplace and personal testing needs.

Princeton On Site Drug Testing

Convenient on-site mobile drug testing with fast, reliable results—saving time while keeping your Princeton, NJ workplace compliant.

Princeton DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Princeton, NJ drivers compliant and on the road with confidence.

DOT Consortium

Join our DOT consortium for hassle-free compliance, random testing management, and reliable driver safety solutions.

(800) 221-4291