Drug Test Services - Port Isabel, TX

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

With 31 testing centers in the Port Isabel 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.

31 Drug Test Service Centers in Port Isabel

Minutes Away, Test Today

3808 Padre Blvd

3.72 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3808 Padre Blvd
South Padre Island, TX 78597

1200 State Highway 100 Ste 5

6.64 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1200 State Highway 100 Ste 5
Port Isabel, TX 78578

1100 N Expressway # 83 Ste 3

11.23 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1100 N Expressway # 83 Ste 3
Brownsville, TX 78521

1601 E Alton Gloor Blvd Ste 109

18.44 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1601 E Alton Gloor Blvd Ste 109
Brownsville, TX 78526

5235 Southmost Rd

19.12 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
5235 Southmost Rd
Brownsville, TX 78521

3302 Boca Chica Blvd Ste 109

19.47 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3302 Boca Chica Blvd Ste 109
Brownsville, TX 78521

2952 Boca Chica Blvd

19.69 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-5:00 PM✓ Walk-in with Electronic Donor Pass
2952 Boca Chica Blvd
Brownsville, TX 78521

500 Paredes Line Rd Ste 6

19.97 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
500 Paredes Line Rd Ste 6
Brownsville, TX 78521

300 Lorenaly Dr Ste C

20.04 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
300 Lorenaly Dr Ste C
Brownsville, TX 78526

2031 E Price Rd Ste C

20.19 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-5:00 PM✓ Walk-in with Electronic Donor Pass
2031 E Price Rd Ste C
Brownsville, TX 78521

1755 W Price Rd

20.35 mi
🕑 Testing Hours: ✓ Walk-in with Electronic Donor Pass
1755 W Price Rd
Brownsville, TX 78520

425 E Los Ebanos Blvd Ste 100-104

21.26 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
425 E Los Ebanos Blvd Ste 100-104
Brownsville, TX 78520

864 Central Blvd Ste 900

21.58 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
864 Central Blvd Ste 900
Brownsville, TX 78520

351 N Sam Houston Blvd

26.40 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
351 N Sam Houston Blvd
San Benito, TX 78586

512 Victoria Ln Ste 7

29.42 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
512 Victoria Ln Ste 7
Harlingen, TX 78550

1901 Bell St Ste B

29.68 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1901 Bell St Ste B
Harlingen, TX 78550

216 N Ed Carey Dr Ste 1

31.11 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
216 N Ed Carey Dr Ste 1
Harlingen, TX 78550

721 W Harrison Ave

31.68 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
721 W Harrison Ave
Harlingen, TX 78550

1402 S M St Ste 3

32.00 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1402 S M St Ste 3
Harlingen, TX 78550

1214 Dixieland Rd Ste 8

32.63 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1214 Dixieland Rd Ste 8
Harlingen, TX 78552

1214 Dixieland Rd Ste 8

32.63 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1214 Dixieland Rd Ste 8
Harlingen, TX 78552

5505 S Expressway 77 Ste 103

32.88 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
5505 S Expressway 77 Ste 103
Harlingen, TX 78550

336 S 8th St

45.26 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
336 S 8th St
Raymondville, TX 78580

165 S 6th St

45.43 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
165 S 6th St
Raymondville, TX 78580

1221 East 10th St, Suite 101-a

47.71 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1221 East 10th St, Suite 101-a
Weslaco, TX 78596

1710 E 8th St

47.77 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1710 E 8th St
Weslaco, TX 78596

1102 S Airport Bldg 2

47.83 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1102 S Airport Bldg 2
Weslaco, TX 78596

7701 Yvette Cir Ste 2

47.88 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
7701 Yvette Cir Ste 2
Mercedes, TX 78570

624 N Tio Ave Ste B

47.94 mi
🕑 Testing Hours: Mon–Fri: 9:00 AM-4:00 PM✓ Walk-in with Electronic Donor Pass
624 N Tio Ave Ste B
Weslaco, TX 78596

1210 W Expressway 83 Ste B

48.78 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1210 W Expressway 83 Ste B
Weslaco, TX 78596

2602 W Expressway 83 Ste 2

48.78 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2602 W Expressway 83 Ste 2
Weslaco, TX 78596

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 , Port Isabel, Texas is a widely used method to assess an individual's recent drug use. By analyzing a urine sample, various substances can be detected, offering valuable insights for employers and legal entities. This process is non-invasive, cost-effective, and provides results quickly.

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Purpose of Urine Drug Testing

  • Pre-employment screening
  • Compliance with workplace policies
  • Monitoring drug rehabilitation progress
  • Random testing programs
  • Legal or forensic purposes

What Drugs Can Be Detected

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

In , Port Isabel, Texas, urine drug testing is essential for maintaining safety and health standards in various settings.

Order Your Test Online

Alcohol Test Services

Alcohol testing in Port Isabel, Texas is an essential procedure utilized to measure the amount of alcohol present in an individual’s body. It ensures the safety and compliance in various environments, including workplaces and legal settings. With accurate measurement techniques, it supports responsible and safe behavior evaluation.

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Alcohol Testing is used in many settings

  • Workplace safety programs
  • Legal and court-mandated testing
  • Rehabilitation program monitoring
  • Random testing in schools
  • Compliance with transportation laws

Common Methods of Alcohol Testing

  • Breath analysis
  • Blood tests
  • Saliva tests
  • Urine tests
  • Sweat patches

Breath analysis - Used for immediate results at traffic stops or workplace sites.

Blood tests - Offers precise measurements, used in legal settings.

Saliva tests - Provides quick detection, often used in schools.

Urine tests - Monitors long-term use in rehabilitation programs.

Sweat patches - Detects continuous alcohol exposure over time.

Order Your Test Online

Hair Follicle Drug Testing Services

Hair follicle drug testing in Port Isabel, Texas effectively identifies drug use over a prolonged duration by analyzing hair samples for metabolites. This form of testing reveals consistent or past usage patterns, making it ideal for certain occupational and legal scenarios due to its extensive detection window.

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Why Use Hair Drug Testing?

  • Long detection window
  • Hard to tamper with
  • Non-invasive collection
  • Accurate historical data
  • Broad drug spectrum

What Drugs Can Be Detected

  • Marijuana
  • Cocaine
  • Opiates
  • Amphetamines
  • PCP

Hair drug testing in Port Isabel, Texas provides superior insights into usage behaviors, crucial for making informed decisions in pre-employment screening or probation monitoring.

Order Your Test Online

DOT Drug Testing Services

DOT drug testing refers to a mandatory drug and alcohol testing program regulated by the U.S. Department of Transportation for safety-sensitive positions. These include drivers, pilots, and others operating transportation vehicles, ensuring compliance with federal safety standards.

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Who is Required to Take DOT Drug Tests?

  • Commercial vehicle drivers
  • Aviation industry employees
  • Pipeliners
  • Transit authorities
  • Coast Guard personnel
  • Truck drivers under FMCSA
  • Railroad workers

What Drugs Are Tested For

  • Marijuana
  • Cocaine
  • Opiates
  • Amphetamines
  • Phencyclidine (PCP)

DOT drug testing in Port Isabel, Texas is vital for maintaining public safety and ensuring that those in critical roles are performing their duties without the influence of substances. Adherence to these tests helps protect the community and upholds the state's commitment to safety.

Order Your Test Online

Probation Drug Testing Services

Probation drug testing is a legal requirement aimed at ensuring individuals comply with court orders and adhere to their probation terms. It utilizes various testing methods to detect substance use, helping monitor rehabilitation progress. In Port Isabel, Texas, this service supports community safety and compliance.

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Why Are Probation Drug Test Services Available?

  • Compliance Monitoring: Ensures adherence to probation terms
  • Rehabilitation Support: Encourages recovery
  • Public Safety: Prevents substance-related crimes
  • Accountability: Tracks behavior
  • Deterrent: Discourages substance use

Testing Methods

  • Urine tests: Most common, easy collection
  • Hair follicle tests: Detects long-term use
  • Saliva tests: Convenient, immediate results
  • Blood tests: Highly accurate, less common

Probation drug testing in Port Isabel, Texas provides a framework to support rehabilitation and ensure that probationers remain compliant with their legal obligations.

Order Your Test Online

Court Ordered Drug Testing Services

Court ordered drug testing in , Port Isabel, Texas is mandated by the judicial system to ensure compliance with legal directives. It can be required of individuals involved in various legal proceedings such as custody battles or DUI convictions, serving both safety and legal accountability.

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Why are Court Ordered Drug Test Services Available?

  • Substance abuse assessment
  • Custody evaluations
  • Parental fitness
  • Rehabilitation progress
  • DUI cases
  • Probation compliance

Court Ordered Test Methods

  • Urine tests: Detects recent drug use
  • Hair follicle tests: Evaluates long-term substance use
  • Saliva tests: Offers quick results
  • Blood tests: Provides detailed analysis
  • Nail tests: Used for extended detection periods

In , Port Isabel, Texas, court ordered drug testing helps ensure individuals adhere to the legal system's requirements while supporting public safety.

Order Your Test Online

Fingernail Drug Testing Services

Fingernail drug testing in , WI offers an innovative approach for long-term drug use detection. By analyzing clipped nail samples, these tests reveal drug intake histories over extended periods, useful for legal, employment, or personal monitoring. It provides a comprehensive view without invasive procedures.

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What is the Detection Window for Fingernail Drug Tests

  • Fingernails: Effective for detecting drug use over the last 3-6 months.
  • Toenails: May show drug intake spanning 6-12 months.

What Drugs Can Be Detected

  • Marijuana
  • Cocaine
  • Opiates
  • Amphetamines
  • Methamphetamines
  • Benzodiazepines

Advantages over other methods

  • Long detection period
  • Difficult to tamper with
  • Non-invasive collection
  • No special storage requirements
  • Cost-effective compared to other long-term tests

In , Port Isabel, Texas, fingernail testing is appreciated for its accuracy and non-invasive nature, offering valuable insights into drug use patterns.

Order Your Test Online

Occupational Health Test Services

Occupational health testing in Port Isabel, Texas involves a variety of assessments aiming to ensure the safety and wellness of employees in their workplace. This testing helps in evaluating physical capabilities, detecting potential health risks, and promoting a healthy workforce. Tests are designed based on job requirements and health regulations.

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Purpose of Occupational Health Testing

  • Ensure workplace safety
  • Employee health monitoring
  • Compliance with regulations
  • Identify potential hazards
  • Enhance productivity

Common Types of Occupational Health Tests

  • Fitness for duty exams: Evaluates physical capability
  • Respirator Fit Testing: Ensures proper respirator use
  • Pulmonary Function Tests (PFT's): Assesses lung health
  • Tuberculosis (TB): Detects exposure
  • Vision: Checks eyesight adequacy
  • Audiometric: Tests hearing capability

In Port Isabel, Texas, occupational health testing supports employers in fostering a safe, healthy, and compliant work environment, protecting both employees and organizational interests.

Order Your Test Online

Drug Statistics for Port Isabel, Texas

Access to accurate statistics specific to drug use and related issues in Port Isabel, Texas, is limited, as data is often aggregated into larger county-level reports. However, integrating national and regional data helps in painting a local picture.

In general, Texas has seen an increase in cases of substance abuse, with methamphetamine and opioid-related incidents being particularly noteworthy. Local initiatives often collaborate with state and federal programs to address these concerns.

Drug Testing Regulations in Texas

Employer drug testing in Port Isabel 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 Port Isabel

Laguna Heights • East Cameron • Laguna Vista • Bayview • Del Mar Heights • Chula Vista • Chula Vista-orason • Orason Acres Colonia

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

Port Isabel Drug Testing

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

Port Isabel DOT Drug Testing

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

Port Isabel DNA Testing

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

Port Isabel Industry Training

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

Port Isabel Hair Drug Testing

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

Port Isabel Alcohol Testing

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

Port Isabel Drug Testing Services

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

Port Isabel 5 Panel Drug Test

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

Port Isabel 10 Panel Drug Test

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

Port Isabel On Site Drug Testing

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

Port Isabel DOT Physicals

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

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

Everything was great

Everything was great, the staff was very polite. Thank you.

Olga Petrova - 9/19/2024

Explained everything so no questions

Torin was great. Explained everything so no questions

Tony Lombardo - 4/18/2025

Reception is kind and helpful

Reception is kind and helpful , everything quick and simple , best urgent care

Yusuf Narmuradov - 11/19/2024

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

Hassle Free Experience

It was easy to make the arrangements to get to someone in regards to renewing my DOT medical certificate. They took care of everything over the phone which made my experience hassle free. I will definitely be using them again and you should too.

Jim Raymond - 10/18/2024

Fast,easy and efficient

Fast,easy and efficient. They made the whole process stress free and simple. Thanks 😊

Micheal Ankenbrandt - 2/19/2025

Super helpful

Customer service was surprisingly super helpful and so nice. She was able to get me in at a local location right away the same day. She helped me figure out exactly what I needed. Very impressed.

Brook - 9/19/2024

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

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


(800) 221-4291