Drug & Alcohol Testing Near Me - National City, CA

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

36 Drug-Testing Centers in National City

Minutes Away, Test Today

408 W 8th St0.87 miles

408 W 8th St
National City, CA 91950

1000 Euclid Ave Ste B1.09 miles

1000 Euclid Ave Ste B
National City, CA 91950

2400 E 4th St1.09 miles

2400 E 4th St
National City, CA 91950

102 Mile Of Cars Way1.17 miles

102 Mile Of Cars Way
National City, CA 91950

88 E Bonita Rd Ste E2.81 miles

88 E Bonita Rd Ste E
Chula Vista, CA 91910

480 4th Ave Ste 101,3.21 miles

480 4th Ave Ste 101,
Chula Vista, CA 91910

435 H St3.27 miles

435 H St
Chula Vista, CA 91910

374 H St. Ste 1033.29 miles

374 H St. Ste 103
Chula Vista, CA 91910

525 3rd Ave Second Floor3.67 miles

525 3rd Ave Second Floor
Chula Vista, CA 91910

250 Prospect Pl4.16 miles

250 Prospect Pl
Coronado, CA 92118

250 Market St4.35 miles

250 Market St
San Diego, CA 92101

1111 Broadway Ste 3054.82 miles

1111 Broadway Ste 305
Chula Vista, CA 91911

300 Fir St4.89 miles

300 Fir St
San Diego, CA 92101

3930 4th Ave Ste 2006.09 miles

3930 4th Ave Ste 200
San Diego, CA 92103

3969 4th Ave Ste 3026.11 miles

3969 4th Ave Ste 302
San Diego, CA 92103

330 Lewis St Ste 1006.28 miles

330 Lewis St Ste 100
San Diego, CA 92103

200 W Arbor Dr6.50 miles

200 W Arbor Dr
San Diego, CA 92103

5333 Mission Center Rd Ste 1006.82 miles

5333 Mission Center Rd Ste 100
San Diego, CA 92108

2667 Camino Del Rio S Ste 100h7.09 miles

2667 Camino Del Rio S Ste 100h
San Diego, CA 92108

2815 Camino Del Rio S Ste 1a7.09 miles

2815 Camino Del Rio S Ste 1a
San Diego, CA 92108

3505 Camino Del Rio S Ste 2087.09 miles

3505 Camino Del Rio S Ste 208
San Diego, CA 92108

4650 Palm Ave Fl 17.35 miles

4650 Palm Ave Fl 1
San Diego, CA 92154

891 Kuhn Dr Ste 1117.85 miles

891 Kuhn Dr Ste 111
Chula Vista, CA 91914

4647 Zion Ave Fl 17.93 miles

4647 Zion Ave Fl 1
San Diego, CA 92120

8090 Parkway Dr8.05 miles

8090 Parkway Dr
La Mesa, CA 91942

1370 Rosecrans St8.22 miles

1370 Rosecrans St
San Diego, CA 92106

5103 Garfield St,8.47 miles

5103 Garfield St,
La Mesa, CA 91941

2020 Genesee Ave 2nd Floor8.58 miles

2020 Genesee Ave 2nd Floor
San Diego, CA 92123

5525 Grossmont Center Dr Ste 6018.76 miles

5525 Grossmont Center Dr Ste 601
La Mesa, CA 91942

8008 Frost St Ste 1068.99 miles

8008 Frost St Ste 106
San Diego, CA 92123

7901 Frost St9.01 miles

7901 Frost St
San Diego, CA 92123

7930 Frost St Ste 4069.04 miles

7930 Frost St Ste 406
San Diego, CA 92123

4510 Viewridge Ave Occupational Medicine Business Office9.13 miles

4510 Viewridge Ave Occupational Medicine Business Office
San Diego, CA 92123

7995 Armour St10.29 miles

7995 Armour St
San Diego, CA 92111

2520 Cactus Rd Ste C10.77 miles

2520 Cactus Rd Ste C
San Diego, CA 92154

7370 Opportunity Rd Ste G10.77 miles

7370 Opportunity Rd Ste G
San Diego, CA 92111

Drug Testing Near Me

Searching for convenient drug testing near me in National City, CA? Accredited Drug Testing, Inc. has a remarkable presence nationwide with over 20,000 locations, providing same-day drug and alcohol testing. Whether it's for a DOT-regulated test, legal obligations like court-ordered screenings, pre-employment drug tests, or simply a personal check-up, our process is swift, ensures privacy, and maintains confidentiality. Our certified collection sites and labs guarantee precise results adhering to all federal and state compliance standards. Contact us at (800) 221-4291 or book online anytime to find a suitable drug testing center near you. Prioritize safety, legality, and tranquility with Accredited Drug Testing, where results are reliably timely and trustworthy.

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

Urine drug testing is an extensively utilized method for screening throughout National City, CA and beyond, known particularly for being the exclusive test approved for DOT-regulated drug testing under 49 CFR Part 40. This approach involves examining a urine sample to detect recent drug use by identifying drugs, metabolites, or alcohol biomarkers. Designed to offer standardized, private, and legally sufficient results, it caters to employers, individuals, and court-mandated programs alike.

Testing Methods & Collection Process

  • Donor Identity Verification: Donors present valid government-issued identification and complete chain-of-custody documentation before testing begins.
  • Secure Collection Environment: Urine samples are collected in a monitored restroom environment to avoid tampering. Protocols restrict personal items, secure water sources, and apply dyes to toilet water.
  • Chain of Custody Documentation: The test involves a federally recognized Chain of Custody Form (CCF) to trace the sample's journey from collection to laboratory analysis, supporting the test's integrity.
  • Temperature & Validity Checks: Post-collection, samples are immediately evaluated for correct temperature and consistency, coupled with laboratory validity tests like creatinine levels, pH, and specific gravity assessments.
  • DOT Split Specimen: DOT tests use two vials: Bottle A is for primary analysis; Bottle B is used if results are contested. Non-DOT tests use only one vial.
  • Laboratory Screening & Confirmation: Samples undergo a two-step examination at SAMHSA-certified laboratories involving an initial immunoassay screen followed by confirmation testing with GC/MS or LC/MS for precise identification.
  • MRO Verification: A licensed Medical Review Officer (MRO) reviews any non-negative results for accuracy, examining medical explanations with the donor prior to releasing results.

How Long Do Urine Test Results Take?

  • Instant Urine Test: Same-day negative results, whereas positives require lab confirmation taking 24-72 hours.
  • Lab-Based Urine Test: Delivers most negative results within 24-48 hours.
  • DOT Drug Test: Results typically span 1-3 business days, contingent on MRO review and donor interaction.
  • Urine EtG Alcohol Test: Results usually available within 24-48 hours.

Testing times may extend in cases involving shy bladder conditions, invalid samples, or if further confirmation is warranted.

Benefits of Urine Drug & Alcohol Testing

  • Currently the sole DOT-recognized method for regulated testing.
  • Effectively detects recent substance use, ideal for workplace or post-accident situations.
  • Offers low cost and swift turnaround.
  • Widely accepted across courts, employer settings, and government bodies.
  • Instant results available for rapid screening needs.
  • Confirmation testing through GC/MS or LC/MS provides high accuracy.

Even with some limitations, urine testing remains the most pragmatic and widely utilized method for drug and alcohol screening in National City, CA and nationwide.

How Hair Drug Testing Works

In National City, CA and beyond, hair drug and alcohol testing emerges as a remarkably credible and comprehensive laboratory method. While urine tests capture recent consumption, hair assessments offer a 90-day detection period, making them invaluable for identifying long-term substance use trends. This suitability makes it ideal for purposes such as employer screenings, legal considerations like custody battles, and any scenario demanding a panoramic review of an individual's history with substances.

Testing Methods & Collection Process

1. Donor Identity Verification

At the commencement of the collection, individuals are required to present valid government-verified ID, after which proper documentation including consent and chain-of-custody forms must be signed for accuracy and legitimacy.

2. Hair Collection Procedure

The procedure involves a trained specialist acquiring a small cluster of hair - generally about 100-120 strands - cut near the scalp. Ideally, the sample is taken from the crown region, but in the absence of head hair, body hair may serve as a substitute. The entire process is both rapid and conducted under direct observation.

3. Chain of Custody Documentation

Completion of a comprehensive Hair Drug Test Custody and Control Form is necessary to ensure evidence of the sample's collection, sealing, and movement, maintaining its legal credibility and protection.

4. Laboratory Preparation & Analysis

Once the sample reaches the lab, it undergoes a sequence of meticulous forensic steps:

This is followed by advanced laboratory testing:

5. Metabolite Detection

As hair grows, drug metabolites embed themselves within the shaft, creating an enduring and tamper-resistant account of substance use. The internal integration of these metabolites makes it exceedingly challenging to adulterate or deceive.

6. MRO Review

A certified Medical Review Officer examines any non-negative results to corroborate their accuracy, exploring potential medical explanations before issuing the official outcomes.

How Long Do Hair Test Results Take?

Although hair testing requires more extended lab processing than urine testing, it assures unmatched consistency in detection.

Benefits of Hair Drug & Alcohol Testing

  • 90-day detection period offering insights into long-term usage patterns.
  • Incredibly difficult to falsify or adulterate test results.
  • Delivers valuable insights into consistent, sporadic, or halted drug use trends.
  • Perfectly suits legal scenarios, custody disputes, and compliance programs.
  • Quick and non-invasive sample collection procedure.
  • Highly reliable findings verified through GC/MS or LC/MS confirmation techniques.

Limitations of Hair Drug & Alcohol Testing

  • Unable to detect recent consumption (5-7 days post-use).
  • More costly option compared to urine or oral fluid assessments.
  • Body hair cannot pinpoint an exact usage timeline.
  • Substance integration may differ based on hair type and growth speed.
  • Not applicable for DOT testing requirements.

Despite these constraints, hair testing remains steadfastly reliable for examining extended substance use and gains widespread utilization by employers, legal representatives, and individuals desiring dependable evidence.

Alcohol & Drug Testing-How Each Method Works

Accredited Drug Testing offers an extensive suite of drug and alcohol screening methods, meticulously tailored to address the needs of employers, DOT regulations, legal mandates, and personal requirements. Gaining insight into the nuances of each test type guarantees precise choices, dependable results, and adherence to both federal and National City, CA state standards. Our vast network, certified labs, and skilled Medical Review Officers furnish the precision, reliability, and expertise indispensable for ensuring high-quality testing results.

Alcohol Urine Drug Test

An alcohol urine test discerns recent alcohol use by identifying ethanol byproducts in urine. Predominantly utilized in workplaces, court settings, and post-incident examinations, while it doesn't assess current impairment levels, its short detection period a few hours offers a swift, financially feasible screening solution that's especially relevant in National City, CA.

ETG Alcohol Test (Urine)

The EtG (Ethyl Glucuronide) urine test is acclaimed for its heightened sensitivity, capable of spotting alcohol consumption up to 80 hours post-ingestion. Given that EtG is a direct ethanol derivative, this test is widely favored by court systems, rehab initiatives, and compliance bodies, providing a lengthier detection timeframe than regular urine tests and noted for robust accuracy and dependability.

Breath Alcohol Test

A breath alcohol test gauges existing impairment by scrutinizing the alcohol concentration in deep lung air. These exams employ DOT-certified breath analyzers (EBTs) to produce immediate, legally robust outcomes. Breath analysis is mandated for employees covered by DOT, and is frequently administered for workplace scenarios, post-accident screenings, and inspections based on reasonable doubt.

Blood Alcohol Test

A blood alcohol test precisely quantifies the volume of ethanol circulating in the bloodstream, ranking as one of the most definitive measures for determining impairment. It sees prominent application in hospitals, police departments, and legal forums for its accuracy, notably in DUI contexts, emergency healthcare, and pivotal legal examinations.

PEth Alcohol Blood Test

A PEth (Phosphatidylethanol) blood test discerns ongoing or significant alcohol consumption by identifying alcohol-centric biomarkers within red blood cells. It can pinpoint usage up to 2-3 weeks, serving as a key marker of extended drinking patterns. This test is prevalent in family law matters, oversight initiatives, treatment settings, and pre-employment screenings in high-safety National City, CA industries.

ETG Alcohol Test (Hair)

The EtG hair alcohol test spans a 90-day detection period by examining alcohol metabolites incorporated in the hair shaft, revealing trends of repeated or sustained alcohol use beyond singular instances. Judicial systems, custody battles, and continuous monitoring schemes rely on EtG hair testing in National City, CA due to its reliability, accuracy, and resilience against temporary abstinence strategies.

With the skills of experts, nationally accredited labs, and rapid scheduling, Accredited Drug Testing guarantees that each alcohol testing method delivers defensible, transparent, and compliant results, aiding individuals and businesses in staying informed, protected, and compliant with all regulations.


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

Super helpful and courteous

I've had to use this service twice for out of state physicians we've hired and both times it was super easy. Both customer service reps I spoke with were super helpful and courteous. I won't hesitate to use their service again if needed.

Alicia Rau - 6/19/2024

Saved My CDL!

Time was running out before my Cdl got downgraded because of a violation I had on clearinghouse. I couldn't find an employer to send me for my return to duty test, but these guys had my test scheduled and done in the same day! They saved my cdl. Thank you again!

Michael Williams - 12/2/2024

Accredited has been wonderful to work with!

Accredited has been wonderful to work with! My court ordered tests are on a very strange schedule but every time I call, they are quick to schedule me and are always able to find a location that works for where I’m at and when! Thank you for making this rather undesirable situation less stressful and efficient.

Madison Sanderford - 8/19/2024

Super Easy to Schedule

Super easy to schedule and get what you need, weather for a job, personal, or court ordered! I believe I spoke with Justine who was helpful in answering all my questions and stayed on the phone with me until she was sure I was all set and got the emails I needed.

Mandy Ryan - 12/14/2024

Explained everything so no questions

Torin was great. Explained everything so no questions

Tony Lombardo - 4/18/2025


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DOT Consortium

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

(800) 221-4291