Drug Test Services - Porterville, CA

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

With 34 testing centers in the Porterville 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.

34 Drug Test Service Centers in Porterville

Minutes Away, Test Today

841 W Morton Ave

1.20 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
841 W Morton Ave
Porterville, CA 93257

356 N Porter Rd

1.32 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
356 N Porter Rd
Porterville, CA 93257

876 W Grand Ave

1.35 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
876 W Grand Ave
Porterville, CA 93257

1295 Hillcrest Ave

20.48 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1295 Hillcrest Ave
Tulare, CA 93274

564 E Kern Ave

20.59 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
564 E Kern Ave
Tulare, CA 93274

919 N Blackstone St,

20.66 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
919 N Blackstone St,
Tulare, CA 93274

1068 N Cherry St

20.94 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1068 N Cherry St
Tulare, CA 93274

755 E Terrace Ave Ste A

20.96 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
755 E Terrace Ave Ste A
Tulare, CA 93274

1633 S Court St

23.17 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1633 S Court St
Visalia, CA 93277

2431 W Caldwell Ave

23.23 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2431 W Caldwell Ave
Visalia, CA 93277

4126 S Demaree St Ste A

23.56 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
4126 S Demaree St Ste A
Visalia, CA 93277

235 E Noble Ave

23.63 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
235 E Noble Ave
Visalia, CA 93277

1206 High Street

24.02 mi
🕑 Facility: Mon–Fri: 07:00 AM - 02:30 PM⚡ Drug Screens: Mon–Fri: 07:30 AM - 12:30 PM
1206 High Street
Delano, CA 93215

225 S Chinowth St

24.03 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
225 S Chinowth St
Visalia, CA 93291

210 S Johnson St Ste C

24.07 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
210 S Johnson St Ste C
Visalia, CA 93291

832 Jefferson St

24.19 mi
🕑 Testing Hours: M,W,F 8:30 AM-12:00 PM & 1:30 PM-4:00 PM • T 9:00 AM-12:00 PM & 1:30 PM-4:00 PM • Th 9:00 AM-12:00 PM✓ Walk-in with Electronic Donor Pass
832 Jefferson St
Delano, CA 93215

1401 Garces Hwy

24.39 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1401 Garces Hwy
Delano, CA 93215

1640 W Mineral King Ave Ste 106

24.43 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1640 W Mineral King Ave Ste 106
Visalia, CA 93291

220 S Mooney Blvd Ste D

24.65 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
220 S Mooney Blvd Ste D
Visalia, CA 93291

649 S County Center Dr Ste A

24.87 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
649 S County Center Dr Ste A
Visalia, CA 93277

1427 S Lexington St Bldg A Ste 10

25.39 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1427 S Lexington St Bldg A Ste 10
Delano, CA 93215

117 N Akers St

26.05 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
117 N Akers St
Visalia, CA 93291

1110 Dairy Ave

31.10 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1110 Dairy Ave
Corcoran, CA 93212

2300 7th St

37.57 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2300 7th St
Wasco, CA 93280

144 Buena Vista Dr

39.59 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
144 Buena Vista Dr
Kernville, CA 93238

1028 N Douty St

39.74 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1028 N Douty St
Hanford, CA 93230

1120 N Irwin St,

39.87 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1120 N Irwin St,
Hanford, CA 93230

869 W Lacey Blvd

40.07 mi
🕑 Testing Hours: M-Th 8:00 AM-4:30 PM • F 8:00 AM-12:30 PM✓ Walk-in with Electronic Donor Pass
869 W Lacey Blvd
Hanford, CA 93230

450 Kings County Dr, Ste 103

40.71 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
450 Kings County Dr, Ste 103
Hanford, CA 93230

3838 San Dimas St Ste B100

46.14 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3838 San Dimas St Ste B100
Bakersfield, CA 93301

6650 Meany Ave

46.48 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
6650 Meany Ave
Bakersfield, CA 93308

3550 Q St. Ste 102

46.53 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3550 Q St. Ste 102
Bakersfield, CA 93301

7737 Meany Ave Ste B9

46.53 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
7737 Meany Ave Ste B9
Bakersfield, CA 93308

3209 Landco Dr

46.70 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3209 Landco Dr
Bakersfield, CA 93308

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 , CO is a common, non-invasive method for detecting recent drug use. It analyzes a urine sample for the presence of specific drugs and their metabolites.

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Purpose of Urine Drug Testing

  • Pre-employment screening
  • Random testing for employees
  • Post-accident investigation
  • Monitoring for substance abuse programs
  • Compliance with legal requirements
  • Sports and athletic testing

What Drugs Can Be Detected

  • Marijuana
  • Cocaine
  • Amphetamines
  • Opiates
  • PCP
  • Benzodiazepines

Urine drug testing in Porterville, California remains a crucial tool for employers, legal entities, and medical professionals to maintain safety and compliance. The adaptability and reliability of this method make it a valuable option for many.

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Alcohol Test Services

Alcohol testing in Porterville, California is used to determine alcohol consumption levels through various testing methods. This type of testing is essential for ensuring safety and compliance in various settings.

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Alcohol Testing is used in many settings

  • Workplace safety programs
  • Transportation industry compliance
  • Substance abuse treatment centers
  • Probation and parole
  • School programs

Common Methods of Alcohol Testing

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

Breathalyzer tests - Used for immediate detection of intoxication.

Blood tests - Provide exact alcohol levels for legal cases.

Urine tests - Detect alcohol consumption over a longer period.

Saliva tests - Non-invasive and quick results.

Hair tests - Detect long-term patterns of alcohol use.

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Hair Follicle Drug Testing Services

Hair follicle drug testing in , CT captures long-term drug usage by analyzing a small hair sample. It is a highly reliable method, showing drug history up to 90 days. This non-intrusive test is commonly used by employers and legal professionals.

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Why Use Hair Drug Testing?

  • Extended detection window
  • High accuracy
  • Hard to tamper with
  • Non-invasive collection
  • Comprehensive history tracking

What Drugs Can Be Detected

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

Hair follicle drug testing in Porterville, California is a premier choice for long-term drug use detection. Its accuracy and wide detection window make it a valuable tool for employers and legal entities seeking detailed and reliable screening.

Order Your Test Online

DOT Drug Testing Services

DOT drug testing in Porterville, California is mandated by the Department of Transportation to ensure the safety of the public by testing safety-sensitive employees for substance abuse. This regulated process requires testing through urine analysis by a certified technician under strict guidelines.

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Who is Required to Take DOT Drug Tests?

  • Commercial truck drivers
  • Bus drivers
  • Aviation personnel
  • Pipeline workers
  • Railroad employees
  • Shipping and maritime workers
  • Mass transit operators

What Drugs Are Tested For

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

DOT drug testing in Porterville, California helps keep transport routes safe by ensuring insightful screening and compliance with federal regulations. Our testing services are aligned to meet the specific needs of DOT requirements, promoting a safer community.

Order Your Test Online

Probation Drug Testing Services

Probation drug testing in Porterville, California is administered to individuals on probation to monitor compliance with court orders prohibiting drug use. These tests help ensure individuals adhere to the terms of their probation.

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Why Are Probation Drug Test Services Available?

  • Ensure compliance: Helps individuals remain drug-free.
  • Rehabilitation support: Encourages treatment participation.
  • Community safety: Reduces the risk of drug-related crimes.
  • Court adherence: Validates adherence to legal obligations.
  • Motivation for change: Encourages self-improvement.

Testing Methods

  • Urine tests: Commonly used due to cost-effectiveness.
  • Hair follicle tests: Extended detection window.
  • Saliva tests: Non-invasive and quick results.
  • Blood tests: Used for precise and detailed analysis.

Probation drug testing in Porterville, California serves as a vital component of the justice system, supporting individuals in restraining from drug use and fostering a lawful lifestyle.

Order Your Test Online

Court Ordered Drug Testing Services

Court ordered drug testing is mandated by judicial bodies as a condition of legal proceedings or probation requirements. It's often crucial for individuals undergoing legal battles or custody issues, holding people accountable to drug policy compliance in Porterville, California.

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Why are Court Ordered Drug Test Services Available?

  • Legal compliance
  • Custody evaluations
  • Probation requirements
  • Rehabilitation monitoring
  • Social service interventions

Court Ordered Test Methods

  • Urine tests: Quick and non-invasive.
  • Hair follicle tests: Long-term use detection.
  • Saliva tests: Immediate reporting benefits.
  • Blood tests: Comprehensive analysis capabilities.
  • Nail tests: Detects drug use over months.

Porterville, California's court-ordered drug testing ensures justice and safety within the community, providing reliable information for decision-making in legal contexts.

Order Your Test Online

Fingernail Drug Testing Services

Fingernail drug testing in Porterville, California is an innovative approach to detecting substances over a prolonged period. By analyzing keratin deposits within the nail, this method can identify drug use over several months, making it a powerful tool in legal, employment, and rehabilitation contexts.

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What is the Detection Window for Fingernail Drug Tests

  • Fingernails: Monitors drug and alcohol use for up to six months.
  • Toenails: Longer growth cycle allows for even longer detection.

What Drugs Can Be Detected

  • Marijuana
  • Cocaine
  • Amphetamines
  • Opiates
  • PCP

Advantages over other methods

  • Wide detection window
  • Non-invasive collection
  • Difficult to tamper
  • Comprehensive drug profile
  • Less influence from temporary abstinence

As a reliable indicator of substance use history, fingernail drug testing offers Porterville, California employers, legal professionals, and rehabilitation centers a dependable method for assessing drug use behavior over extended periods.

Order Your Test Online

Occupational Health Test Services

Occupational health testing in Porterville, California is designed to ensure the health and safety of workers by assessing fitness for duty and compliance with health standards. It facilitates the prevention, intervention, and management of workplace-related health issues.

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Purpose of Occupational Health Testing

  • Identify workplace health risks
  • Prevent occupational diseases
  • Ensure regulatory compliance
  • Optimize employee health
  • Enhance workplace productivity
  • Support safety initiatives

Common Types of Occupational Health Tests

  • Fitness for duty exams: Assess whether an employee is physically fit to perform job tasks.
  • Respirator Fit Testing: Ensures proper fit of protective breathing equipment.
  • Pulmonary Function Tests (PFT's): Evaluates lung function and capacity.
  • Tuberculosis (TB): Screening for TB infection risk control.
  • Vision: Ensures visual acuity for specific job requirements.
  • Audiometric: Assesses hearing abilities for jobs where hearing is crucial.

Occupational health testing in Porterville, California plays an instrumental role in safeguarding workers' health, promoting the well-being of the workforce, and reducing work-related health risks.

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Drug Statistics for Porterville, California

Drug-related statistics specific to Porterville, California, might include localized surveys or reports from county health departments. However, drug use trends and data often connect with broader Tulare County statistics, highlighting issues such as opioid use and efforts in community intervention. Exact numbers vary, but community efforts remain focused on prevention, education, and treatment to combat drug abuse effectively.

Drug Testing Regulations in California

Employer drug testing in Porterville must comply with state guidelines under Cal. Lab. Code § 1025 et seq.. California AB 2188 requires non-psychoactive cannabis metabolite protections while retaining full employer rights for pre-employment, post-accident, and safety-sensitive testing.

Medical Marijuana Status: Legal  |  Recreational Marijuana Status: Legal

Surrounding Areas Served Near Porterville

East Porterville • Worth • Poplar-cotton Center • Cotton Center • Terra Bella • Plainview • Lindsay • Springville

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

Porterville Drug Testing

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

Porterville DOT Drug Testing

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

Porterville DNA Testing

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

Porterville Industry Training

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

Porterville Hair Drug Testing

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

Porterville Alcohol Testing

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

Porterville Drug Testing Services

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

Porterville 5 Panel Drug Test

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

Porterville 10 Panel Drug Test

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

Porterville On Site Drug Testing

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

Porterville DOT Physicals

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

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

phone support has been excellent

I have used ADT several times. Their phone support has been excellent, both when putting in the orders and when asking for help to interpret results.

Tee Ess - 12/19/2024

Kind and very helpful

Called around for hours and posted from company to person and got nowhere and had to fight to get a refund die to there miss information, well save time and sanity Acredited is the ONLY place the person was kind and very helpful, said what I needed and Faith the lady I dealt with made it simple and she did above and beyond everything I needed, as I'm going through a devorse this was a great help and made my day 100 stars from me.

Steven Harrison - 12/19/2024

Quick, Polite, Informative

Everyone has been quick to respond, polite, informative. It's been easy to order tests. I would recommend them to anyone to use.

April Rogers - 2/15/2025

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

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

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

Great experience

Great experience and great lab. Customer service agent was very helpful.

Jenna Bee - 2/19/2025

Very easy to get scheduled

Very easy to get scheduled and easy process once checked in and the staff were all extremely friendly! I would recommend this company!

Ronickia Moore - 11/19/2024

Everything was great

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

Olga Petrova - 9/19/2024


(800) 221-4291