Drug Test Services - Four Corners, TX

Urine | Hair | DOT | Oral Fluid | Alcohol/ETG | Occupational Health

With 40 testing centers in the Four Corners 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.

40 Drug Test Service Centers in Four Corners

Minutes Away, Test Today

13811 Charterhouse Way

2.14 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
13811 Charterhouse Way
Sugar Land, TX 77498

1111 Gillingham Ln

3.32 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1111 Gillingham Ln
Sugar Land, TX 77478

1250 7th St

3.56 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1250 7th St
Sugar Land, TX 77478

1201 Lakeview Dr

3.69 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1201 Lakeview Dr
Sugar Land, TX 77478

10521 Corporate Dr

4.37 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-5:00 PM✓ Walk-in with Electronic Donor Pass
10521 Corporate Dr
Stafford, TX 77477

1403 Highway 6 Ste 100

4.57 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1403 Highway 6 Ste 100
Sugar Land, TX 77478

14023 Southwest Fwy

4.77 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
14023 Southwest Fwy
Sugar Land, TX 77478

1235 Lake Pointe Pkwy # 102

4.85 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1235 Lake Pointe Pkwy # 102
Sugar Land, TX 77478

15259 Southwest Freeway,

5.11 mi
🕑 Testing Hours: ✓ Walk-in with Electronic Donor Pass
15259 Southwest Freeway,
Sugar Land, TX 77478

16062 Southwest Fwy Ste 2

5.40 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
16062 Southwest Fwy Ste 2
Sugar Land, TX 77479

16902 Southwest Fwy

5.59 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
16902 Southwest Fwy
Sugar Land, TX 77479

16545 Southwest Frwy #225

5.64 mi
🕑 Facility: Mon–Fri: 07:30 AM - 05:00 PM⚡ Drug Screens: Mon–Fri: 07:30 AM - 05:00 PM
16545 Southwest Frwy #225
Sugar Land, TX 77479

12121 Richmond Ave Ste 124,

5.67 mi
🕑 Testing Hours: Mon–Fri: 10:00 AM-4:00 PM✓ Walk-in with Electronic Donor Pass
12121 Richmond Ave Ste 124,
Houston, TX 77082

3531 Town Center Blvd S Ste 101

5.86 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3531 Town Center Blvd S Ste 101
Sugarland, TX 77479

6360 W Sam Houston Pkwy N Ste 200

5.90 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
6360 W Sam Houston Pkwy N Ste 200
Houston, TX 77041

9380 W Sam Houston Pkwy S Ste 300

5.90 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
9380 W Sam Houston Pkwy S Ste 300
Houston, TX 77099

8101 W Sam Houston Pkwy S Ste 100

5.90 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
8101 W Sam Houston Pkwy S Ste 100
Houston, TX 77072

8104 Southwest Fwy Ste E

6.01 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
8104 Southwest Fwy Ste E
Houston, TX 77074

3727 Greenbriar Dr Ste 403

6.04 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3727 Greenbriar Dr Ste 403
Stafford, TX 77477

3151 Highway 6

6.07 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3151 Highway 6
Sugar Land, TX 77478

2550 Gray Falls Dr Ste 120

6.13 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2550 Gray Falls Dr Ste 120
Houston, TX 77077

10039 Bissonnet St Ste 120

6.13 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
10039 Bissonnet St Ste 120
Houston, TX 77036

11807 Westheimer Rd Ste 560

6.32 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
11807 Westheimer Rd Ste 560
Houston, TX 77077

7101 W Grand Pkwy S

6.34 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
7101 W Grand Pkwy S
Richmond, TX 77407

5510-a W Grand Pkwy S

6.34 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
5510-a W Grand Pkwy S
Richmond, TX 77406

2929 Woodland Park Dr

6.35 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2929 Woodland Park Dr
Houston, TX 77082

1398 Eldridge Pkwy Ste 113

6.59 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1398 Eldridge Pkwy Ste 113
Houston, TX 77077

9543 Bissonnet St

6.84 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
9543 Bissonnet St
Houston, TX 77036

6501 S Fry Rd Ste 1000

7.50 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
6501 S Fry Rd Ste 1000
Katy, TX 77494

9000 Southwest Fwy Ste 180

7.55 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
9000 Southwest Fwy Ste 180
Houston, TX 77074

14770 Memorial Dr Ste 100

7.59 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
14770 Memorial Dr Ste 100
Houston, TX 77079

8313 Southwest Fwy Ste 111

7.91 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
8313 Southwest Fwy Ste 111
Houston, TX 77074

8200 Wednesbury Lane Suite # 4,

7.99 mi
🕑 Testing Hours: Mon–Fri: 10:00 AM-4:00 PM✓ Walk-in with Electronic Donor Pass
8200 Wednesbury Lane Suite # 4,
Houston, TX 77074

952 S Fry Rd,

8.02 mi
🕑 Testing Hours: Mon–Fri: 10:00 AM-4:00 PM✓ Walk-in with Electronic Donor Pass
952 S Fry Rd,
Katy, TX 77450

14045 Memorial Dr

8.12 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-8:00 PM • Sat:,Sun: 8:00 AM-6:00 PM✓ Walk-in with Electronic Donor Pass
14045 Memorial Dr
Houston, TX 77079

9701 Richmond Ave Ste 115

8.21 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
9701 Richmond Ave Ste 115
Houston, TX 77042

10807 Shawnbrook Dr

8.31 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
10807 Shawnbrook Dr
Houston, TX 77071

12345 Katy Fwy

8.58 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
12345 Katy Fwy
Houston, TX 77079

2600 S Gessner Rd Ste 205

8.60 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2600 S Gessner Rd Ste 205
Houston, TX 77063

19450 Katy Fwy

8.61 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
19450 Katy Fwy
Houston, TX 77094

Employers | Individuals | Families

Accredited Drug Testing provides comprehensive drug and alcohol testing services to promote workplace safety, meet compliance requirements, and support legal or personal needs for testing. Drug Testing helps prevent accidents, ensures a drug-free workplace,and meets Federal mandates such as those outlined by the Department of Transportation (DOT)

Drug Testing Services

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

Urine Drug Testing Services

Urine drug testing in Four Corners, Texas is a common method to identify drug usage by analyzing a urine sample for traces of illegal or prescription drugs. It is non-invasive and easy to administer.

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Purpose of Urine Drug Testing

  • Pre-employment screening
  • Post-accident investigation
  • Random testing programs
  • Follow-up testing
  • Rehabilitation monitoring

What Drugs Can Be Detected

  • Marijuana
  • Cocaine
  • Methamphetamines
  • Opiates
  • PCP

In Four Corners, Texas, urine drug testing remains a key tool for employers and organizations committed to maintaining a drug-free environment. Its simplicity and effectiveness make it a preferred choice.

Order Your Test Online

Alcohol Test Services

Alcohol testing in Four Corners, Texas is a critical practice to assess and monitor alcohol consumption levels for legal, employment, or medical reasons. Such testing helps ensure safety and compliance with laws and regulations.

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Alcohol Testing is used in many settings

  • Workplace safety
  • Law enforcement
  • Rehabilitation programs
  • Medical diagnosis
  • Transportation industry

Common Methods of Alcohol Testing

  • Breathalyzer
  • Blood tests
  • Saliva tests
  • Urine tests
  • Hair tests

Breathalyzer - Measures alcohol level in breath

Blood tests - Provides precise BAC

Saliva tests - Quick and non-invasive

Urine tests - Detects recent use

Hair tests - Long-term consumption

Alcohol testing in Four Corners, Texas plays a vital role in maintaining safety and compliance across numerous environments, contributing to public health and legal adherence.

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Hair Follicle Drug Testing Services

Hair follicle drug testing involves analyzing a small hair sample for drug metabolites, offering a long detection window to confirm past substance use. This non-invasive method is particularly advantageous for verifying drug history over weeks or months, utilized in Four Corners, Texas for employment and legal purposes.

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Why Use Hair Drug Testing?

  • Long detection period
  • Non-invasive collection
  • Hard to adulterate
  • Tracks repeated use over time
  • Useful in high-risk workplaces

What Drugs Can Be Detected

  • Marijuana
  • Cocaine
  • Opiates
  • Heroin
  • Methamphetamine

In NH, hair drug testing provides a comprehensive view of an individual's substance use, making it invaluable for both employers and legal entities in making informed decisions based on robust evidence.

Order Your Test Online

DOT Drug Testing Services

DOT drug testing is a federally mandated program for safety-sensitive employees in transportation industries. It follows strict procedures to ensure the safety and integrity of the testing process. Mandatory for drivers, pilots, and other regulated positions, DOT testing helps maintain public safety and compliance with federal regulations.

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Who is Required to Take DOT Drug Tests?

  • Commercial drivers
  • Pilots
  • Railroad workers
  • Pipeline operators
  • Transit employees
  • Maritime crew members
  • Emergency response workers

What Drugs Are Tested For

  • Cocaine
  • Cannabinoids
  • Opiates
  • Amphetamines
  • Phencyclidine (PCP)
  • MDMA

DOT drug testing in , Four Corners, Texas is critical for preserving safety in the transportation sector. Accurate and consistent testing ensures that all transportation employees adhere to safety standards, thus protecting the public and the employees themselves.

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Probation Drug Testing Services

Probation drug testing in , Four Corners, Texas is a crucial tool used by law enforcement to monitor individuals on probation. It serves as a compliance measure to ensure individuals adhere to probation conditions by abstaining from substance use, ultimately promoting rehabilitation.

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Why Are Probation Drug Test Services Available?

  • Rehabilitation support: Assists in recovery accountability
  • Compliance monitoring: Ensures adherence to probation terms
  • Public safety: Protects communities from potential dangers
  • Recidivism prevention: Reduces chances of re-offending
  • Court directives: Compliance with legal orders

Testing Methods

  • Urine tests: Standard for detecting recent use
  • Hair follicle tests: Offers long-term drug history
  • Saliva tests: Quick and non-invasive
  • Blood tests: Provides precise substance information

In , Four Corners, Texas, probation drug testing is vital for maintaining the integrity of the criminal justice system, ensuring both public safety and personal rehabilitation.

Order Your Test Online

Court Ordered Drug Testing Services

Court ordered drug testing in Four Corners, Texas is a legal requirement to ensure compliance with court orders, involving various testing methods to monitor prohibited substance use.

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Why are Court Ordered Drug Test Services Available?

  • Legal compliance
  • Safety assurance
  • Rehabilitation monitoring
  • Custody decisions
  • Public safety protection

Court Ordered Test Methods

  • Urine tests: Used for recent drug use detection
  • Hair follicle tests: Provides long-term use overview
  • Saliva tests: Quick, on-site testing method
  • Blood tests: Detailed analysis for certain drugs
  • Nail tests: Offers extended detection windows

These testing services in Four Corners, Texas ensure legal compliance and community safety, providing essential insights for judicial decisions.

Order Your Test Online

Fingernail Drug Testing Services

Fingernail drug testing in Four Corners, Texas offers a robust, non-invasive method for detecting drug use by analyzing substances deposited in nail growth. It provides a valuable alternative to hair tests, enabling the identification of drug exposure over an extended period while offering distinct advantages in versatility and reliability.

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What is the Detection Window for Fingernail Drug Tests

  • Fingernails: Detects up to 6 months past usage depending on growth rate.
  • Toenails: Potentially serves as a longer-term detection method due to slower growth.

What Drugs Can Be Detected

  • Cocaine
  • Opiates
  • THC
  • MDMA
  • Phencyclidine (PCP)

Advantages over other methods

  • Unaffected by hair dyes or treatments
  • Long detection window
  • Small sample size required
  • Non-invasive procedure
  • Greater resistance to tampering

In conclusion, fingernail drug testing in Four Corners, Texas stands as a highly effective and reliable method in various contexts, offering broad detection capabilities and advantages over other testing techniques.

Order Your Test Online

Occupational Health Test Services

Occupational health testing in Four Corners, Texas encompasses a variety of assessments designed to ensure workplace health and safety by evaluating employees' physical and mental fitness.

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Purpose of Occupational Health Testing

  • Ensuring workplace safety
  • Preventing occupational hazards
  • Monitoring employee health
  • Enhancing productivity
  • Complying with regulations

Common Types of Occupational Health Tests

  • Fitness for duty exams: Assess physical ability
  • Respirator Fit Testing: Ensures proper mask fitting
  • Pulmonary Function Tests (PFT's): Evaluates lung health
  • Tuberculosis (TB): Screens for infection
  • Vision: Checks visual acuity
  • Audiometric: Measures hearing capability

Occupational health testing is critical for maintaining safety standards and fostering a healthy workplace culture in Four Corners, Texas's diverse industries.

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Drug Statistics for Four Corners, Texas

Statistics on drug-related issues in Four Corners, Texas, indicate a pressing need for robust intervention and prevention strategies. Data reflects that a segment of the population struggles with substance abuse issues, particularly with commonly abused drugs like prescription medications and illicit substances.

The local authorities and health organizations in Four Corners are taking active steps to combat these challenges through public awareness campaigns and support programs. They aim to reduce the impact of drug abuse on the community, emphasizing the importance of prevention, treatment access, and education in curbing drug use.

Drug Testing Regulations in Texas

Employer drug testing in Four Corners must comply with state guidelines under Tex. Lab. Code § 411.091. Texas Labor Code § 411.091 mandates written policy distribution for employer drug testing programs while supporting broad pre-employment and random testing rights.

Medical Marijuana Status: Legal (Medical)  |  Recreational Marijuana Status: Prohibited

Surrounding Areas Served Near Four Corners

Town West • Mission Bend • Sugar Land • Meadows Place • Pecan Grove • New Territory • Horseshoe Bend • Stafford

Drug & Alcohol Test Selection & Panel Comparison

Test Type / Panel Detection Window Common Applications Turnaround Time
5-Panel Urine Screen 1 to 5 Days Standard Pre-Employment, Random & Workplace Testing 24 to 48 Hours
10-Panel Urine Screen 1 to 7 Days Expanded Employment, Healthcare & Probation 24 to 48 Hours
Hair Follicle Drug Test Up to 90 Days Long-Term Monitoring, Court-Ordered & Custody 3 to 5 Business Days
Oral Fluid / Saliva Screen 1 to 48 Hours Immediate Recent-Use Screening & On-Site Testing 24 to 48 Hours
ETG Alcohol Testing Up to 80 Hours Court-Ordered Alcohol Abstinence & Probation Monitoring 24 to 48 Hours

Four Corners Drug Testing

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

Four Corners DOT Drug Testing

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

Four Corners DNA Testing

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

Four Corners Industry Training

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

Four Corners Hair Drug Testing

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

Four Corners Alcohol Testing

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

Four Corners Drug Testing Services

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

Four Corners 5 Panel Drug Test

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

Four Corners 10 Panel Drug Test

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

Four Corners On Site Drug Testing

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

Four Corners DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Four Corners, 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 0 certified collection sites in the Four Corners area, offering urine, hair follicle, breath alcohol, and DOT testing.
While walk-ins are welcome with an electronic donor pass at collection sites across Four Corners, 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

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

Explained everything so no questions

Torin was great. Explained everything so no questions

Tony Lombardo - 4/18/2025


(800) 221-4291