DOT Drug Testing - Castroville, TX

FMCSA-USCG-FTA-FRA-FAA-PHMSA

With 31 testing centers in the Castroville 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 DOT Drug-Testing Centers in Castroville

Minutes Away, Test Today

1501 Houston St

0.64 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1501 Houston St
Castroville, TX 78009

3903 Wiseman Blvd Suite 219

13.89 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3903 Wiseman Blvd Suite 219
San Antonio, TX 78251

3100 Avenue E

15.42 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3100 Avenue E
Hondo, TX 78861

4436 Culebra Rd Ste 3

18.31 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
4436 Culebra Rd Ste 3
San Antonio, TX 78228

6430 Bandera Rd Ste 98

18.57 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
6430 Bandera Rd Ste 98
San Antonio, TX 78238

6100 Bandera Road, Suite 400

18.66 mi
🕑 Testing Hours: Mon–Fri: 8:30 AM-4:00 PM✓ Walk-in with Electronic Donor Pass
6100 Bandera Road, Suite 400
San Antonio, TX 78238

9234 N Loop 1604 W Ste 110

18.71 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
9234 N Loop 1604 W Ste 110
San Antonio, TX 78249

5720 Bandera Rd Ste 14

18.98 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
5720 Bandera Rd Ste 14
San Antonio, TX 78238

115 Duncan Dr

19.30 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
115 Duncan Dr
San Antonio, TX 78226

3015 General Hudnell Dr

19.45 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3015 General Hudnell Dr
San Antonio, TX 78226

9727 Poteet Jourdanton Fwy Ste 101

19.81 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
9727 Poteet Jourdanton Fwy Ste 101
San Antonio, TX 78211

9727 Poteet Jourdanton Fwy Ste 105

19.81 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
9727 Poteet Jourdanton Fwy Ste 105
San Antonio, TX 78211

7400 Barlite Blvd

20.01 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
7400 Barlite Blvd
San Antonio, TX 78224

7390 Barlite Blvd Ste 135

20.03 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
7390 Barlite Blvd Ste 135
San Antonio, TX 78224

5282 Medical Dr Ste 190

20.44 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
5282 Medical Dr Ste 190
San Antonio, TX 78229

2040 Babcock Rd Ste 101

20.60 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2040 Babcock Rd Ste 101
San Antonio, TX 78229

2040 Babcock Rd Ste 303

20.60 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2040 Babcock Rd Ste 303
San Antonio, TX 78229

4241 Woodcock Dr Ste A125

20.72 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
4241 Woodcock Dr Ste A125
San Antonio, TX 78228

8042 Wurzbach Rd Ste 140

21.23 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
8042 Wurzbach Rd Ste 140
San Antonio, TX 78229

4411 Medical Drive, Ste 170

21.30 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
4411 Medical Drive, Ste 170
San Antonio, TX 78229

6222 Deiavala #104

21.60 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
6222 Deiavala #104
San Antonio, TX 78249

2406 Commercial Ave Ste 111

21.84 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2406 Commercial Ave Ste 111
San Antonio, TX 78221

12703 Mountain Air Ste 105

21.94 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
12703 Mountain Air Ste 105
San Antonio, TX 78249

3355 Cherry Ridge St Ste 103b

22.54 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3355 Cherry Ridge St Ste 103b
San Antonio, TX 78230

5222 De Zavala Rd Ste 304

22.74 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
5222 De Zavala Rd Ste 304
San Antonio, TX 78249

12651 Vance Jackson Rd Ste 114

22.89 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
12651 Vance Jackson Rd Ste 114
San Antonio, TX 78230

343 W Houston St Ste 308

23.47 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
343 W Houston St Ste 308
San Antonio, TX 78205

1303 Mccullough Ave Ste 136,

23.98 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1303 Mccullough Ave Ste 136,
San Antonio, TX 78212

400 E Quincy St

23.98 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-8:00 PM✓ Walk-in with Electronic Donor Pass
400 E Quincy St
San Antonio, TX 78215

710 Augusta St

24.08 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
710 Augusta St
San Antonio, TX 78215

1200 Brooklyn Ave Ste 165

24.08 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1200 Brooklyn Ave Ste 165
San Antonio, TX 78212

DOT Drug Testing, DOT Consortium, DOT Physicals, FMCSA Clearinghouse, Serving All DOT modes

We have 31 DOT drug testing locations to serve you in and around Castroville, TX.

In Castroville, TX, and nearby locations, our DOT-compliant services ensure employers, operators, and all DOT modes adhere to 49 CFR Part 40, covering FMCSA, FTA, FAA, USCG, FRA, and PHMSA. Access local testing for drugs, alcohol, physicals, random pools, MIS, MVR, and driver qualifications with same-day service options.

Choose your DOT or drug/alcohol testing need and find a local testing center for convenient scheduling. Our efficient system streamlines arranging drug tests near Castroville for yourself, employees, or third parties.

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.

Castroville, Texas DOT Services

DOT Drug Testing & Services Available in Castroville, TX:

Accredited Drug Testing in Castroville, TX offers comprehensive DOT services including drug and alcohol screenings, physicals, and compliance support, providing reliable resources for both businesses and individuals.

DOT Services in Castroville, TX

DOT regulations mandate thorough drug and alcohol testing to uphold safety avenues for all working in transportation. In Castroville, Texas, testing compliance is strictly monitored to ensure workforce integrity.

The importance of DOT screening in Castroville, TX lies in its commitment to safety, adhering to regulatory requirements, and preventing substance-related incidents within transportation professions.

Employee safety in Castroville, TX is paramount, with drug and alcohol screening helping to foster a secure working environment, reducing risks, and promoting overall public safety standards.

Regular testing mandates in Castroville, Texas enable companies to maintain high safety standards, ensuring that safety-sensitive positions are filled by qualified individuals committed to substance-free operations.

FMCSA Information

FMCSA regulations in Castroville, TX emphasize a strict testing regimen to ensure drivers maintain a drug-free status, safeguarding road safety.

Castroville, Texas adheres rigorously to FMCSA standards, requiring regular screening for all personnel in safety-sensitive roles to promote public safety.

USCG Information

In Castroville, TX, USCG regulations enforce drug testing for maritime personnel to safeguard operations and uphold safety standards.

USCG testing in Castroville, Texas ensures that maritime employees adhere to strict drug-free policies to protect national waters.

FAA Information

FAA mandates in Castroville, TX require comprehensive drug testing to ensure aviation safety, maintaining strict control over personnel in safety-sensitive positions.

Compliance with FAA standards in Castroville, Texas is paramount, ensuring testing protocols are met for aviation employees to safeguard passengers.

FRA Information

The FRA in Castroville, TX demands rigorous testing of railway employees to prevent accidents caused by substance abuse.

Maintaining FRA compliance is crucial in Castroville, Texas, with regular screenings for employees in safety-sensitive railroad roles ensuring public safety.

FTA Information

FTA guidelines in Castroville, TX require regular drug and alcohol testing for transit staff to guarantee a safety-first environment.

By adhering to FTA testing standards, public transportation workers in Castroville, Texas contribute to safer travel experiences.

PHMSA Information

PHMSA regulations in Castroville, TX focus on stringent drug and alcohol testing for pipeline employees to prevent safety hazards associated with substance misuse.

Accredited Drug Testing ensures PHMSA compliance in Castroville, Texas by providing essential testing services for pipeline safety roles.

Scheduling in Castroville, TX

Schedule DOT drug or alcohol tests in Castroville, TX by calling (800) 221-4291 or online via our express scheduling. Select your test and fill out the Donor Information to register before visiting.

Using your zip code, we determine the nearest DOT testing location that meets your requirements. You’ll receive a donor pass with address, hours, and directions by email. Complete donor data and payment upfront is essential.

Our SAMHSA-certified labs guarantee tests are verified by licensed Medical Review Officers (MRO), ensuring compliance and accuracy.

Accredited Drug Testing offers comprehensive DOT testing and breath alcohol screening across Castroville, TX and surrounding areas, augmenting our local presence with further facilities nearby.

With testing centers nationwide, Accredited Drug Testing provides flexibility for scheduling your test anywhere, anytime, ensuring convenience for clients in any location.

Texas Dept. of Transportation Updates

DUI Statistics in Castroville, TX

The state of Texas, including Castroville and the surrounding areas within Medina County, has been working diligently to address the pressing issue of driving under the influence (DUI). In recent years, Castroville, TX has made significant strides in implementing DUI prevention programs, though challenges persist. Texas law enforcement agencies report that DUI incidents remain a significant concern, affecting not only the safety of drivers but also pedestrians. Efforts such as public awareness campaigns, stricter law enforcement, and sobriety checkpoints have been introduced to curb the number of DUI arrests. Medina County, where Castroville is located, has seen variances in DUI-related incidents, highlighting both urban and rural enforcement efforts. Community initiatives focused on education and awareness are crucial in reducing these occurrences and ensuring safer roads across Castroville, TX, and its neighboring regions.

Drug Involved Accidents in Castroville, TX

The prevalence of drug-involved accidents remains a concern for Castroville, TX, and by extension, Medina County. The Texas Department of Transportation (DOT) data shows that these incidents are often tied to both prescription medications and illicit substances. Castroville has seen a concerted effort to tackle this issue through public safety campaigns and inter-agency cooperation. Effective measures are being put in place to test and identify drug impairment in drivers, thereby enhancing road safety. Texas, including Castroville, TX, is continuously updating its policies to address drug-related challenges on the road. Public education regarding the effects of drug-impaired driving is paramount in reducing these types of accidents. Collaboration between law enforcement, healthcare providers, and community organizations is pivotal in preventing drug-related road incidents and ensuring compliance with Texas's stringent driving laws.

Marijuana Related Accidents in Castroville, TX

As Texas observes evolving marijuana legislation across various states, Castroville, TX remains vigilant about marijuana-related road incidents. Despite marijuana not being legal for recreational use in Texas, its impact on road safety is still a critical issue. Law enforcement agencies in Castroville and Medina County are proactively engaging in detecting and preventing marijuana-impaired driving. Understanding the physiological effects of marijuana on drivers and the subsequent risk factors is crucial for policy development. The Texas DOT, in collaboration with local agencies, has been exploring methods to accurately assess marijuana impairment. Public education campaigns focus on the legal implications and road safety concerns associated with marijuana use. Collaborative programs aim to train officers in recognizing signs of marijuana impairment, thereby mitigating the chance of accidents. Ensuring the safety of Castroville's roads remains a top priority, given the complexities surrounding marijuana use and driving.

Castroville Drug Testing

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

Castroville DOT Drug Testing

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

Castroville DNA Testing

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

Castroville Industry Training

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

Castroville Hair Drug Testing

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

Castroville Alcohol Testing

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

Castroville Drug Testing Services

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

Castroville 5 Panel Drug Test

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

Castroville 10 Panel Drug Test

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

Castroville On Site Drug Testing

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

Castroville DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Castroville, 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

A DOT drug test is a federally regulated drug test required for safety-sensitive transportation employees, such as CDL drivers. It is collected and processed under specific DOT procedures (49 CFR Part 40), including strict chain of custody, certified lab analysis, and documented results appropriate for DOT compliance."
DOT testing applies to employees in safety-sensitive roles, including commercial drivers and other regulated transportation workers. Employers must ensure pre-employment testing, random testing, post-accident testing, reasonable suspicion testing, return-to-duty, and follow-up testing are performed as required."
Yes. Accredited Drug Testing maintains access to DOT-compliant collection sites nationwide. Drivers and employers can schedule testing at a nearby location for required DOT drug and alcohol tests, including urgent post-accident or reasonable suspicion testing."
DOT-required testing includes pre-employment, random, post-accident, reasonable suspicion/reasonable cause, return-to-duty, and follow-up testing. For alcohol, evidential breath testing devices are used to document alcohol concentration following DOT protocol."
Yes. Solo CDL drivers and owner-operators are still subject to DOT testing requirements. They must participate in a compliant random testing program and complete required testing events using DOT-approved processes. Accredited Drug Testing assists in meeting these obligations."
If a DOT drug test screen is not negative, the specimen is sent for confirmatory testing using more specific laboratory methods. Final results are documented and reported according to DOT rules. An employee who has a violation must complete the DOT return-to-duty and follow-up process before resuming safety-sensitive work."
Yes. DOT drug and alcohol test results are released only to authorized employer representatives and are maintained in compliance files for DOT purposes. Results are handled in a controlled and confidential manner."
Yes. Accredited Drug Testing supports urgent post-accident and reasonable suspicion testing because DOT rules require timely documentation of possible impairment following an incident or observed behavior in a safety-sensitive environment."

Customer Reviews

they have made my job much easier

I always have a good experience setting up company driver drug screens through ADT. I'm really happy I found them while searching online, they have made my job much easier.

Exodus Heath - 2/13/2025

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

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


(800) 221-4291