✓ Same-Day Walk-Ins Welcome ✓ Digital Donor Pass in Minutes ✓ No Doctor Order Required ✓ SAMHSA-Certified Labs

Drug Testing Locations in Crows Landing, CA

With 39 testing centers in the Crows Landing area, we offer drug and alcohol testing for employment, probation and DOT requirements. Additional services include DOT consortium enrollment, DNA Testing and background checks. Order your tests and services online or call (800) 221-4291.

Urine (5, 10, 12, 14-Panel) Hair Follicle (90-Day) DOT Drug & Alcohol Court & Probation Oral Fluid / Saliva EtG Alcohol
🕑 Collection Site Hours: Monday – Friday: 8:00 AM – 4:00 PM • ✓ Walk-in with Electronic Donor Pass • Saturday – Sunday: Closed

39 Drug-Testing Centers in Crows Landing

Same-Day Electronic Donor Pass Accepted at All Locations Below

Minutes Away, Test Today

1248 Main St,

5.98 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1248 Main St,
Newman, CA 95360

801 E St

6.08 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
801 E St
Patterson, CA 95363

1700 Keystone Pacific Pkwy

7.64 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1700 Keystone Pacific Pkwy
Patterson, CA 95363

1048 Geer Rd

14.36 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1048 Geer Rd
Turlock, CA 95380

2000 Paulson Rd

14.53 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2000 Paulson Rd
Turlock, CA 95380

1801 Colorado Ave Ste 130

15.23 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1801 Colorado Ave Ste 130
Turlock, CA 95382

911 E Tuolumne Rd

15.27 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
911 E Tuolumne Rd
Turlock, CA 95382

1340 Mitchell Rd

16.75 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-5:00 PM✓ Walk-in with Electronic Donor Pass
1340 Mitchell Rd
Modesto, CA 95351

400 12th St Ste 23

17.31 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
400 12th St Ste 23
Modesto, CA 95354

400 12th St Suite 23

17.35 mi
🕑 Testing Hours: Mon–Fri: 9:00 AM-5:00 PM✓ Walk-in with Electronic Donor Pass
400 12th St Suite 23
Modesto, CA 95354

1064 Woodland Ave Ste F

18.12 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1064 Woodland Ave Ste F
Modesto, CA 95351

600 Coffee Rd

18.68 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
600 Coffee Rd
Modesto, CA 95355

1441 Florida Ave

19.22 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1441 Florida Ave
Modesto, CA 95350

1524 Mchenry Ave Ste 500

19.23 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1524 Mchenry Ave Ste 500
Modesto, CA 95350

1524 Mchenry Ave Ste 160

19.30 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1524 Mchenry Ave Ste 160
Modesto, CA 95350

1524 Mchenry Ave. Ste 120,

19.30 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1524 Mchenry Ave. Ste 120,
Modesto, CA 95350

1541 Florida Ave Ste 102

19.30 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1541 Florida Ave Ste 102
Modesto, CA 95350

1700 Coffee Rd

19.70 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1700 Coffee Rd
Modesto, CA 95355

2112 Mchenry Ave

19.81 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2112 Mchenry Ave
Modesto, CA 95350

3125 Conant Ave

20.19 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3125 Conant Ave
Modesto, CA 95350

4601 Dale Rd Fl 4

21.63 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
4601 Dale Rd Fl 4
Modesto, CA 95356

1550 Colony Rd Ste B

25.20 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1550 Colony Rd Ste B
Ripon, CA 95366

808 Iowa Ave

25.52 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
808 Iowa Ave
Los Banos, CA 93635

730 W I St,

25.61 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
730 W I St,
Los Banos, CA 93635

285 Mercey Springs Rd Ste A

26.17 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
285 Mercey Springs Rd Ste A
Los Banos, CA 93635

3605 Hospital Rd Ste H

27.26 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3605 Hospital Rd Ste H
Atwater, CA 95301

1390 W H St Ste C

27.70 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1390 W H St Ste C
Oakdale, CA 95361

1140 Norman Dr, Ste 2

28.53 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1140 Norman Dr, Ste 2
Manteca, CA 95336

1341 Historical Plaza Way

28.55 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1341 Historical Plaza Way
Manteca, CA 95336

965 E Yosemite Ave Ste 9

28.82 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
965 E Yosemite Ave Ste 9
Manteca, CA 95336

1205 E North St

29.19 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1205 E North St
Manteca, CA 95336

1779 W Yosemite Ave Fl 202

29.47 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1779 W Yosemite Ave Fl 202
Manteca, CA 95337

901 Darcy Pkwy

30.71 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
901 Darcy Pkwy
Lathrop, CA 95330

632 West 11th Street, Suite 115

31.06 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
632 West 11th Street, Suite 115
Tracy, CA 95376

644 W 12th St

31.18 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-5:00 PM✓ Walk-in with Electronic Donor Pass
644 W 12th St
Tracy, CA 95376

2160 W Grant Line Rd Ste 230

32.59 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2160 W Grant Line Rd Ste 230
Tracy, CA 95377

510 W Main St Ste E

32.93 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
510 W Main St Ste E
Merced, CA 95340

3070 M St Ste 11

33.00 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3070 M St Ste 11
Merced, CA 95348

374 W Olive Ave Ste A

33.17 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-11:30 AM & 1:00 PM-5:00 PM✓ Walk-in with Electronic Donor Pass
374 W Olive Ave Ste A
Merced, CA 95348

Employment, DOT, Court Ordered, Probation, Family

At our 39 testing facilities in the Crows Landing vicinity, Accredited Drug Testing provides extensive drug and alcohol testing options. Our services cover both DOT and non-DOT urine screenings, breath and EtG alcohol tests, and drug tests using hair samples suited for individuals, businesses, or legal requirements. In Crows Landing, CA, we deliver rapid testing outcomes and SAMSA certified lab assessments with same-day service availability. Most testing sites are conveniently close to your residence or workplace. We also offer Occupational Health Testing, Clinical Testing, and Background Checks.

To arrange a test, dial (800) 221-4291 or register online. Choose your test and a proximate location—tests can be for personal use, employees, or other individuals. Test scheduling is simple and quick, either by contacting our scheduling team or using our 24/7 online system. Our efficient, intuitive process ensures easy arrangement of drug tests in Crows Landing.

* You must register by phone or online to receive your donor pass/registration prior to proceeding to the testing center. You must bring a valid government issued ID along with the registration/barcode number which was sent to you by email.

When you're searching for drug testing near me or drug testing locations, we provide a simple and convenient process to find a drug and alcohol testing location near you that is certified to provide all of your drug and alcohol testing needs.

How the Drug Testing Process Works in Crows Landing, CA

1

Order Online or Call

Select your test & search nearby Crows Landing collection sites.

2

Get Donor Pass

Receive your donor pass by email or SMS immediately.

3

Visit Collection Center

Walk in with donor pass & photo ID. No appointment needed.

4

Fast Results

Secure results delivered confidentially in 24-48 hours.

Crows Landing, CA Drug Testing

Drug Testing Services Available at Our Crows Landing, CA Labs:

At our Crows Landing drug testing collection sites, Accredited Drug Testing provides one of the widest selections of drug and alcohol testing services available. Whether you're an employer, attorney, court, or private individual, we offer both DOT and non-DOT testing options—ranging from rapid tests to comprehensive lab-based screenings—capable of detecting nearly any substance.

Mobile/On-Site Drug Testing

If you're an employer needing to test 25 or more employees and looking to save time and money, we offer mobile on-site drug testing where we come to you. Call us today for more information.

Official Legal & Regulatory Framework

California Drug Testing Laws & Compliance in Crows Landing

SAMHSA Certified • MRO Verified

Accredited Drug Testing provides employer and individual screening in Crows Landing, CA adhering strictly to Cal. Lab. Code § 1025 et seq., federal DOT 49 CFR Part 40 guidelines, and certified SAMHSA laboratory chain-of-custody standards.

Statutory Citation
Cal. Lab. Code § 1025 et seq.
Medical Marijuana
Legal
Recreational Cannabis
Legal
Workplace Rights
Zero-Tolerance Protected

California AB 2188 requires non-psychoactive cannabis metabolite protections while retaining full employer rights for pre-employment, post-accident, and safety-sensitive testing.

Under Cal. Lab. Code § 1025 et seq., employers in Crows Landing may institute comprehensive drug-free workplace programs including:

  • Pre-Employment Screening: Conditional job offer testing for all applicants.
  • Reasonable Suspicion Testing: Objective, documented behavioral signs of impairment.
  • Post-Accident Testing: Mandatory screening following workplace injuries or property damage.
  • Random Testing: Unannounced selection for safety-sensitive roles and machinery operators.
  • Workers' Comp Incentives: Verified testing programs provide premium discounts on state workers' compensation insurance policies.

While cannabis statutes continue evolving across the United States (Medical: Legal; Recreational: Legal in California), employers retain the legal prerogative to prohibit substance impairment on job premises, during operational shifts, and while operating company vehicles.

Federal regulations, Department of Transportation (DOT) mandates, and safety-sensitive positions strictly prohibit marijuana use regardless of state cannabis status. ADT provides both standard THC screening and non-THC customized drug panels for private employers wishing to adapt to state-specific hiring preferences.

For commercial drivers, maritime operators, aviation crews, and transit personnel operating in Crows Landing, all testing follows rigorous Department of Transportation (DOT) standards governed by 49 CFR Part 40:

  • Federal 5-Panel Regulated Urine Screen: Tested for Marijuana, Cocaine, Amphetamines/Methamphetamines, Opioids (Codeine, Morphine, Heroin, Hydrocodone, Hydromorphone, Oxycodone, Oxymorphone), and PCP.
  • SAMHSA Accredited Laboratories: Zero compromise on testing accuracy with gas chromatography/mass spectrometry (GC/MS) confirmation.
  • Medical Review Officer (MRO): Every non-negative specimen is reviewed by a licensed physician MRO before reporting.
  • FMCSA Clearinghouse Reporting: Real-time reporting of verified positive tests and refusals to test into the federal driver clearinghouse database.

Accredited Drug Testing provides legally admissible drug and alcohol screening for county court dockets, child custody hearings, probation requirements, and pretrial diversion programs throughout Crows Landing and California.

All specimens undergo observed or witnessed collection procedures when ordered by the court, accompanied by rigorous Federal Chain of Custody Forms (CCF). Turnaround time is rapid, and official certificates of analysis can be forwarded directly to your attorney, court case officer, or probation supervisor upon release.

Hyper-Local Proximity Coverage

Neighborhoods & Service Districts in Crows Landing, CA

Minutes Away, Same-Day Donor Pass

Accredited Drug Testing operates collection centers strategically positioned throughout Crows Landing to ensure fast donor access with minimal drive times. Walk-ins are welcomed with an immediate electronic donor pass across all major neighborhoods and transit corridors:

Key Crows Landing Neighborhoods Covered:

● Downtown Crows Landing ● Central Business District ● North Crows Landing Commercial Corridor ● South Crows Landing Industrial Park ● East Crows Landing Metro Area ● West Crows Landing Trade Center ● Medical & Healthcare District ● Airport / Logistics Corridor

Major Employment & Commercial Hubs Served:

Crows Landing Main Street Commercial District • Crows Landing Regional Trade Center • County Industrial Parkway • Metro Healthcare & Occupational Medical Corridor

Located anywhere in Crows Landing? Receive your electronic pass in under 5 minutes.
Order Test Online →

Surrounding Areas Served Near Crows Landing

Gustine • Westport • Diablo Grande • Hilmar • Irwin • Hilmar-irwin • Stevinson • Westley

Crows Landing, CA Drug & Alcohol Test Panels & Detection Windows

Select a test panel below to review specific drug compounds screened, detection timeframes, and instant electronic pass registration in Crows Landing.

Test Type & Local Panel Detection Window Common Use Cases in Crows Landing Turnaround Time
5-Panel Urine Screen in Crows Landing →
THC, Cocaine, Basic Opiates, Amphetamines, PCP
1 to 5 Days Pre-Employment, Workplace Safety & Non-DOT Randoms 24 to 48 Hours
10-Panel Urine Screen in Crows Landing →
Adds Benzodiazepines, Barbiturates, Methadone, Propoxyphene
1 to 7 Days Healthcare Staffing, Corporate Policies & Court Orders 24 to 48 Hours
Hair Follicle Drug Test in Crows Landing →
Long-term historical pattern analysis (90-day window)
Up to 90 Days Child Custody, Legal Defense & Executive Screening 3 to 5 Business Days
DOT Drug & Alcohol Test in Crows Landing →
49 CFR Part 40 compliant with CCF & MRO verification
1 to 5 Days FMCSA, FAA, FRA, FTA, USCG Regulated Drivers & Crew 24 to 48 Hours
ETG & Breath Alcohol in Crows Landing →
Evidential breath testing or 80-hour urine EtG metabolite
Breath: 0–12 Hrs
EtG: Up to 80 Hrs
Zero-Tolerance Workplace, Post-Accident & Probation Immediate to 48 Hours
DOT Physical Exam in Crows Landing →
FMCSA NRCME certified medical examiner card (Form MCSA-5876)
1 to 2 Year Card Commercial Driver License (CDL) Medical Certification Same-Day Medical Card
Full-Service Testing Solutions

Occupational Health & Specialized Screening in Crows Landing, CA

Beyond standard urine screening, Accredited Drug Testing delivers end-to-end occupational medical solutions, DOT credentialing, court-admissible forensic testing, and employer background compliance.

NRCME Certified

DOT Physicals & Medical Cards

FMCSA-compliant examinations conducted by certified medical examiners. Instant driver medical certificate renewal across Crows Landing.

AABB Accredited

Court Legal DNA & Paternity

100% court-admissible legal paternity, maternity, sibling, and grandparentage testing with strict chain of custody for family court.

FCRA Compliant

Background Checks & MVR

Comprehensive pre-employment screening, nationwide criminal history searches, and Motor Vehicle Records (MVR) for driver compliance.

Long Detection Window

90-Day Hair Follicle Drug Test

Tamper-resistant 90-day historical substance screening. Preferred by family courts, custody attorneys, and zero-tolerance employers.

Instant & Lab Confirmed

Breath Alcohol & 80-Hr EtG

Evidential breath alcohol testing (BAT) and 80-hour EtG urine/hair metabolite analysis for probation monitoring and workplace safety.

We Come to You

Mobile On-Site Group Testing

Certified mobile collection technicians dispatched directly to your Crows Landing facility or job site for groups of 25+ employees.

Local Testing Resource Network

More Drug & Alcohol Testing Options in Crows Landing, CA

Need immediate walk-in service in Crows Landing? View our Walk-In Drug Testing Near Me in Crows Landing, CA facility guide or order an instant electronic donor pass online.

Crows Landing Drug Testing

Quickly find trusted local drug testing centers in Crows Landing, CA — fast, convenient, and reliable every time!

Crows Landing DOT Drug Testing

Quickly find a local DOT drug testing center in Crows Landing, CA — fast, reliable, convenient nationwide service!

Crows Landing DNA Testing

DNA testing for legal and non-legal purposes including child support, and child custody around Crows Landing, CA.

Crows Landing Industry Training

Including specimen collector training, DER training, reasonable suspicion training and much more in Crows Landing, CA.v

Crows Landing Hair Drug Testing

Get fast, accurate hair drug testing at our convenient Crows Landing, CA locations—results you can trust, every time!

Crows Landing Alcohol Testing

Fast, reliable alcohol testing to keep your workplace safe and compliant every single day in Crows Landing, CA.

Crows Landing Drug Testing Services

Reliable nationwide drug testing services ensuring accuracy, compliance, and quick results for businesses and individuals in Crows Landing, CA.

Crows Landing 5 Panel Drug Test

Accurate 5 panel drug testing with fast, confidential results—trusted by Crows Landing, CA employers and individuals nationwide.

Crows Landing 10 Panel Drug Test

Comprehensive 10 panel drug testing with fast, reliable results—trusted for Crows Landing, CA workplace and personal testing needs.

Crows Landing On Site Drug Testing

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

Crows Landing DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Crows Landing, CA 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.


Frequently Asked Questions

In California, workplace drug testing is governed by statutory guidelines under Cal. Lab. Code § 1025 et seq.. Private employers generally operate under a Labor Code § 1025 and AB 2188 guidelines, permitting pre-employment, random, post-accident, and reasonable suspicion testing.
Yes. Employers in California who implement a certified Drug-Free Workplace Program in compliance with Cal. Lab. Code § 1025 et seq. can qualify for insurance premium discounts and enhanced legal protections during workers' compensation claims.
Under California state law compliance standards, state statutes prohibits adverse action for off-duty non-psychoactive cannabis use. Safety-sensitive positions, DOT-regulated roles, and federal contract compliance remain strictly zero-tolerance across all jurisdictions.
Accredited Drug Testing provides access to 39 certified collection sites in the Crows Landing area, offering urine, hair follicle, breath alcohol, and DOT testing.
While walk-ins are welcome with an electronic donor pass at collection sites across Crows Landing, registering your test online or calling (800) 221-4291 prior to visiting guarantees rapid priority specimen collection with an instant barcode pass.
Negative drug and alcohol test results are typically released within 24 to 48 hours of specimen processing. Any non-negative screenings undergo confirmatory GC/MS or LC/MS testing and licensed Medical Review Officer (MRO) verification within 3 to 5 business days.

Customer Reviews

Very helpful

They were very helpful in finding a place to get tested on the route back home! They made a difficult time seem easy with no judgement!

Anne Creden - 11/19/2024

Really Helpful

I am just really happy to see that the location near me still offers hair follicle tests!! They are really helpful when any false positives happen, waiting on my results. Hope they come fast!

Kali Collins - 1/16/2025

Friendly and Knowledgeable

I reached out Accredited Drug Testing/Secure Screenings to partner for my drug testing business (Discovery Diagnostics Columbia SC) and the process was extremely easy. I worked with Sicilia who was amazing. She was friendly & knowledgeable, and answer all of my questions with ease.

Kendra Harley - 3/26/2025

Fast service and friendly staff!

Fast service and friendly staff! Could not recommend enough for drug testing services.

Habib Malik - 4/12/2025

Had very fast and good service

Had very fast and good service, was able to get an appointment same day with the nearest facility. My questions were answered thoroughly but quick. Definitely recommend

Jacob Matzke - 11/19/2024

This is by far the easiest

This is by far the easiest way to get my lab work ordered and paid for. The phone calls are short and to the point. They don’t try to push extra sales on you and when I walk in to the clinic I simply show my donor pass and with in a matter of minutes I’m done. I will continue to use ADT in the future.

Jason Jackson - 7/19/2025

Fantastic Experience

Fantastic experience from the beginning. Jocelyn was very helpful to me as someone who doesn’t have much experience in needing a test. They were very helpful and walked me through the entire process start to finish. Thank you ADT!

Riley Wilson - 2/18/2025

quick to assist

They are very quick to assist with your orders and they helped when I needed to find a new testing facility.

Gary Matkin - 2/19/2025

Clear and Competent

I was so surprised with the quality of customer service I received today when I called Accredited Drug Testing. The representative was so clear and competent. She was able to reschedule an appointment at my preferred location. The representative whose name is Justice, was so polite and competent. She expedited the whole process. It was a relief to me.

Rachel Padian - 9/6/2024

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


(800) 221-4291