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

Drug Testing Locations in Gregory, TX

With 29 testing centers in the Gregory 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

29 Drug-Testing Centers in Gregory

Same-Day Electronic Donor Pass Accepted at All Locations Below

Minutes Away, Test Today

2413 Memorial Pkwy

2.23 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2413 Memorial Pkwy
Portland, TX 78374

1500 Wildcat Dr Ste M

3.09 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1500 Wildcat Dr Ste M
Portland, TX 78374

1605 Us Highway 181 Ste D

6.12 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1605 Us Highway 181 Ste D
Portland, TX 78374

308 Creay St Bldg 1152

6.98 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
308 Creay St Bldg 1152
Corpus Christi, TX 78449

1731 W Wheeler Ave

7.81 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1731 W Wheeler Ave
Aransas Pass, TX 78336

1711 W Wheeler Ave Ste 3

7.81 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1711 W Wheeler Ave Ste 3
Aransas Pass, TX 78336

1711 W Wheeler Ave

7.81 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1711 W Wheeler Ave
Aransas Pass, TX 78336

246 S Commercial St

8.93 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
246 S Commercial St
Aransas Pass, TX 78336

710 Buffalo St Ste 810 Park Tower Building

10.88 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
710 Buffalo St Ste 810 Park Tower Building
Corpus Christi, TX 78401

1521 S Staples St Ste 103

12.21 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1521 S Staples St Ste 103
Corpus Christi, TX 78404

3933 Up River Rd

12.40 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3933 Up River Rd
Corpus Christi, TX 78408

2601 Hospital Blvd, Suite 104

12.62 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2601 Hospital Blvd, Suite 104
Corpus Christi, TX 78405

3133 S Alameda Street, Suite 500

13.01 mi
🕑 Testing Hours: Mon–Fri: 10:00 AM-2:00 PM✓ Walk-in with Electronic Donor Pass
3133 S Alameda Street, Suite 500
Corpus Christi, TX 78404

4544 Baldwin Blvd Ste E

13.08 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
4544 Baldwin Blvd Ste E
Corpus Christi, TX 78408

2209 N Padre Island Dr Ste O

13.76 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2209 N Padre Island Dr Ste O
Corpus Christi, TX 78408

4201 Driftwood Pl

14.25 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
4201 Driftwood Pl
Corpus Christi, TX 78411

4455 Spid Ste 21

14.51 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
4455 Spid Ste 21
Corpus Christi, TX 78411

4737 Larcade Dr

14.89 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
4737 Larcade Dr
Corpus Christi, TX 78415

2319 Highway 35 N,

14.90 mi
🕑 Testing Hours: Mon–Fri: 10:00 AM-12:00 PM✓ Walk-in with Electronic Donor Pass
2319 Highway 35 N,
Rockport, TX 78382

621 E Sinton St

15.28 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
621 E Sinton St
Sinton, TX 78387

3403 S Padre Island Dr Ste 301

15.34 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3403 S Padre Island Dr Ste 301
Corpus Christi, TX 78415

3817 S Padre Island Dr

15.34 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3817 S Padre Island Dr
Corpus Christi, TX 78415

3825 S Padre Island Dr

15.34 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3825 S Padre Island Dr
Corpus Christi, TX 78415

4025 S Padre Island Dr

15.40 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-5:00 PM✓ Walk-in with Electronic Donor Pass
4025 S Padre Island Dr
Corpus Christi, TX 78411

4637 S Padre Island Dr

15.41 mi
🕑 Testing Hours: ✓ Walk-in with Electronic Donor Pass
4637 S Padre Island Dr
Corpus Christi, TX 78411

4455 S Padre Island Dr Ste 9

15.43 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
4455 S Padre Island Dr Ste 9
Corpus Christi, TX 78411

7406 Up River Rd

16.30 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
7406 Up River Rd
Corpus Christi, TX 78409

400 Enterprise Blvd

16.33 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
400 Enterprise Blvd
Rockport, TX 78382

5722 Esplanade Dr Ste 101

17.03 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
5722 Esplanade Dr Ste 101
Corpus Christi, TX 78414

Employment, DOT, Court Ordered, Probation, Family

At our 29 sites in the Gregory, Texas vicinity, Accredited Drug Testing delivers extensive drug and alcohol assessments. Catering for DOT and non-DOT requirements, we conduct urine drug testing, breath alcohol evaluations, EtG alcohol screening, and hair drug tests for personal, corporate, and legal matters. Gregory, TX offers both rapid results and SAMSA-approved lab analysis with immediate service, with most locations conveniently located near residences or businesses. We also provide Occupational Health Evaluations, Clinical Testing, and Background Checks.

Dial (800) 221-4291 or register via the internet. Choose your test type, then select a nearby spot—testing services are accessible for oneself, staff, or any third party. Test scheduling is straightforward and convenient; contact our scheduling team or secure a test appointment online anytime, day or night. Our efficient, intuitive program makes organizing drug tests near Gregory simple and painless.

* 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 Gregory, TX

1

Order Online or Call

Select your test & search nearby Gregory 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.

Gregory, TX Drug Testing

Drug Testing Services Available at Our Gregory, TX Labs:

At our Gregory 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

Texas Drug Testing Laws & Compliance in Gregory

SAMHSA Certified • MRO Verified

Accredited Drug Testing provides employer and individual screening in Gregory, TX adhering strictly to Tex. Lab. Code § 411.091, federal DOT 49 CFR Part 40 guidelines, and certified SAMHSA laboratory chain-of-custody standards.

Statutory Citation
Tex. Lab. Code § 411.091
Medical Marijuana
Legal (Medical)
Recreational Cannabis
Prohibited
Workplace Rights
Zero-Tolerance Protected

Texas Labor Code § 411.091 mandates written policy distribution for employer drug testing programs while supporting broad pre-employment and random testing rights.

Under Tex. Lab. Code § 411.091, employers in Gregory 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 (Medical); Recreational: Prohibited in Texas), 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 Gregory, 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 Gregory and Texas.

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 Gregory, TX

Minutes Away, Same-Day Donor Pass

Accredited Drug Testing operates collection centers strategically positioned throughout Gregory 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 Gregory Neighborhoods Covered:

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

Major Employment & Commercial Hubs Served:

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

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

Surrounding Areas Served Near Gregory

San Patricio • Portland • Doyle • Tradewinds • Ingleside • Falman • Falman-county Acres • Ingleside On-the-bay

Gregory, TX 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 Gregory.

Test Type & Local Panel Detection Window Common Use Cases in Gregory Turnaround Time
5-Panel Urine Screen in Gregory →
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 Gregory →
Adds Benzodiazepines, Barbiturates, Methadone, Propoxyphene
1 to 7 Days Healthcare Staffing, Corporate Policies & Court Orders 24 to 48 Hours
Hair Follicle Drug Test in Gregory →
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 Gregory →
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 Gregory →
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 Gregory →
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 Gregory, TX

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 Gregory.

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 Gregory facility or job site for groups of 25+ employees.

Local Testing Resource Network

More Drug & Alcohol Testing Options in Gregory, TX

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

Gregory Drug Testing

Quickly find trusted local drug testing centers in Gregory, TX — fast, convenient, and reliable every time!

Gregory DOT Drug Testing

Quickly find a local DOT drug testing center in Gregory, TX — fast, reliable, convenient nationwide service!

Gregory DNA Testing

DNA testing for legal and non-legal purposes including child support, and child custody around Gregory, TX.

Gregory Industry Training

Including specimen collector training, DER training, reasonable suspicion training and much more in Gregory, TX.v

Gregory Hair Drug Testing

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

Gregory Alcohol Testing

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

Gregory Drug Testing Services

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

Gregory 5 Panel Drug Test

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

Gregory 10 Panel Drug Test

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

Gregory On Site Drug Testing

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

Gregory DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Gregory, TX 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 Texas, workplace drug testing is governed by statutory guidelines under Tex. Lab. Code § 411.091. Private employers generally operate under a Texas Labor Code § 411.091 guidelines, permitting pre-employment, random, post-accident, and reasonable suspicion testing.
Yes. Employers in Texas who implement a certified Drug-Free Workplace Program in compliance with Tex. Lab. Code § 411.091 can qualify for insurance premium discounts and enhanced legal protections during workers' compensation claims.
Under Texas state law compliance standards, state statutes allows broad pre-employment, random, and post-accident testing. Safety-sensitive positions, DOT-regulated roles, and federal contract compliance remain strictly zero-tolerance across all jurisdictions.
Accredited Drug Testing provides access to 29 certified collection sites in the Gregory area, offering urine, hair follicle, breath alcohol, and DOT testing.
While walk-ins are welcome with an electronic donor pass at collection sites across Gregory, 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

I love the customer service

I love the customer service. The lady was patient enough to help me book my appointment with ease and ensuring I get the location that's best for me. Keep up the good work!

Elizabeth Chiaka - 9/19/2024

Excellant Performance

The visit here is always the best . The place is always really clean. The employees are super courteous, very polite, and professional. This is the only drug lab I like to go do my drug and alcohol test. I would like to tell them thank you so much for thier excellent performance and job

Eli Gonzalez - 1/4/2025

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


(800) 221-4291