Drug Testing Locations - Sierra, CA

Employment, DOT, Court Ordered, Personal
Urine| Hair Follicle | Oral Fluid | Blood | ETG

35 Drug-Testing Centers in Sierra

Minutes Away, Test Today

2502 Jensen Ave24.20 miles

2502 Jensen Ave
Sanger, CA 93657

2570 Jensen Ave, Suite 11524.23 miles

2570 Jensen Ave, Suite 115
Sanger, CA 93657

5612 Bisqustone25.34 miles

5612 Bisqustone
Fresno, CA 98710

On--site Only25.93 miles

On--site Only
Fresno, CA 93737

755 N Peach Ave Ste C1326.12 miles

755 N Peach Ave Ste C13
Clovis, CA 93611

7005 N Maple Ave Ste 10427.59 miles

7005 N Maple Ave Ste 104
Fresno, CA 93720

7075 N Maple Ave, Ste 10427.63 miles

7075 N Maple Ave, Ste 104
Fresno, CA 93720

7300 N Fresno St Oak 1 Bldg27.94 miles

7300 N Fresno St Oak 1 Bldg
Fresno, CA 93720

1245 E Herndon Ave28.72 miles

1245 E Herndon Ave
Fresno, CA 93720

5361 E Kings Canyon Rd28.88 miles

5361 E Kings Canyon Rd
Fresno, CA 93727

7265 N 1st St Ste 10529.04 miles

7265 N 1st St Ste 105
Fresno, CA 93720

6042 N Fresno St Ste 10129.77 miles

6042 N Fresno St Ste 101
Fresno, CA 93710

6101 N Fresno St Ste 10329.84 miles

6101 N Fresno St Ste 103
Fresno, CA 93710

222 W Shaw Ave30.86 miles

222 W Shaw Ave
Fresno, CA 93704

5649 N Palm Ave31.29 miles

5649 N Palm Ave
Fresno, CA 93704

5550 N Palm Ave Ste 10731.30 miles

5550 N Palm Ave Ste 107
Fresno, CA 93704

2911 Tulare St31.71 miles

2911 Tulare St
Fresno, CA 93721

2023 Divisadero St,32.25 miles

2023 Divisadero St,
Fresno, CA 93701

1350 O Street Suite 10132.41 miles

1350 O Street Suite 101
Fresno, CA 93721

1122 Rose Ave, Ste 232.53 miles

1122 Rose Ave, Ste 2
Selma, CA 93662

2113 Merced St32.67 miles

2113 Merced St
Fresno, CA 93721

2555 S East Ave32.69 miles

2555 S East Ave
Fresno, CA 93706

2746 E Jensen Ave33.18 miles

2746 E Jensen Ave
Fresno, CA 93706

1850 Whitson St33.20 miles

1850 Whitson St
Selma, CA 93662

48677 Victoria Ln,33.27 miles

48677 Victoria Ln,
Oakhurst, CA 93644

4739 W. Shaw Ave, Suite 10435.21 miles

4739 W. Shaw Ave, Suite 104
Fresno, CA 93722

5626 Heddon Ct43.08 miles

5626 Heddon Ct
Mariposa, CA 95338

363 East Almond Avenue, Suite 10743.22 miles

363 East Almond Avenue, Suite 107
Madera, CA 93637

210 S Johnson St Ste C43.62 miles

210 S Johnson St Ste C
Visalia, CA 93291

509 S I St Ste A43.63 miles

509 S I St Ste A
Madera, CA 93637

220 S Mooney Blvd Ste D43.63 miles

220 S Mooney Blvd Ste D
Visalia, CA 93291

344 W 6th St43.72 miles

344 W 6th St
Madera, CA 93637

1640 W Mineral King Ave Ste 10643.75 miles

1640 W Mineral King Ave Ste 106
Visalia, CA 93291

117 N Akers St43.77 miles

117 N Akers St
Visalia, CA 93291

235 E Noble Ave43.80 miles

235 E Noble Ave
Visalia, CA 93277

Employment, DOT, Court Ordered, Probation, Family

Accredited Drug Testing delivers a wide range of drug and alcohol examination services through 35 testing centers around Sierra, California. Our offerings include DOT and non-DOT urine drug tests, breath alcohol tests, EtG alcohol tests, and hair drug assessments for personal, professional, and legal purposes. With rapid results testing in Sierra and SAMSA-certified lab analysis, we offer same-day services, ensuring most testing spots are just moments from your home or workplace. Moreover, we provide Occupational Health Testing, Clinical Testing, and Background Checks.

Dial (800) 221-4291 or register via our website. Pick your test type and a convenient nearby center—perfect for personal, employee, or third-party testing. Booking a test is simple and swift; reach our scheduling team or arrange online testing any time of day. Our efficient, intuitive process ensures you can set up drug testing near Sierra with ease.

* 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.

Sierra, CA Drug Testing

Drug Testing Services Available at Our Sierra, CA Labs:

At our Sierra 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.

Drug Testing in Sierra, CA

Sierra, California Statistics

In Sierra City, Sierra County, approximately 10% of adults reported illicit drug use within the past month.

Sierra County experienced a 15% increase in opioid-related overdoses over the last year.

In Sierra City, methamphetamine is the most commonly abused drug, according to local health officials.

Sierra County reported a 25% rise in emergency room visits due to drug-related incidents last year.

Almost 20% of teens in Sierra City admitted to using marijuana in a 2022 survey.

Drug abuse treatment admissions in Sierra County increased by 30% over the past two years.

How does the body eliminate Drugs

Drug elimination is the sum of the processes of removing an administered drug from the body. In the pharmacokinetic ADME scheme (absorption, distribution, metabolism, and excretion), it is frequently considered to encompass both metabolism and excretion. Hydrophobic drugs, to be excreted, must undergo metabolic modification making them more polar. Hydrophilic drugs, on the other hand, can undergo excretion directly, without the need for metabolic changes to their molecular structures.

Although many sites of metabolism and excretion exist, the chief organ of metabolism is the liver, while the organ primarily tasked with excretion is the kidney. Any significant dysfunction in either organ can result in the accumulation of the drug or its metabolites in toxic concentrations.

A variety of other factors impact elimination — intrinsic drug properties, such as polarity, size, or pKa. Also other factors include genetic variation among individuals, disease states affecting other organs, and pathways involved in the way the drug distributes through the body, such as first-pass metabolism.

Issues of Concern

Drug elimination is the removal of an administered drug from the body. It is accomplished in two ways, either by excretion of an unmetabolized drug in its intact form or by metabolic biotransformation followed by excretion. While excretion is primarily carried out by the kidneys, other organ systems are involved as well. Similarly, the liver is the primary site of biotransformation, yet extrahepatic metabolism takes place in a variety of organ systems affecting multiple drugs.

Given the multiple organ systems and the variety of metabolic transformations present, drug elimination can entail a significant degree of complexity. Hydrophilic drugs are typically directly excreted by the kidneys, while hydrophobic drugs undergo biotransformation before excretion. The purpose here is twofold – biotransformation serves both detoxify the exogenous substances as well as to increase their hydrophilicity, ensuring their elimination via the kidneys.

Two broad metabolic pathways of hepatic drug transformation exist. Phase I is the direct modification of the target molecule, whereas phase II entails conjugation of the target to a polar molecule of low molecular weight. Phase I prepare the drug to enter phase II, but single-phase metabolism also exists.

Phase I involves oxidation, reduction, and hydrolysis of the exogenous molecule. These reactions are accomplished by hepatic microsomal enzymes, which reside in the smooth endoplasmic reticulum of the hepatocytes. Best known among them is the cytochrome P450 system, whose enzymes are predominantly involved in oxidative metabolism. Within the cytochrome P450 family (CYP), the enzyme responsible for the metabolism of more than 50% of existing drugs is the CYP3A4. Its activity encompasses various classes of medications, including opioids, immunosuppressants, antihistamines, and benzodiazepines. The enzymes can also be induced or inhibited by a variety of substances they interact with, including pharmaceuticals. The increase in metabolic activity with CYP induction results in a diminished activity of drugs targeted by that particular isoform. Conversely, CYP inhibition will result in increased drug plasma concentration, potentially leading toxicity. The CYP3A4 is induced by phenytoin, phenobarbital, and St. John's wort, while diltiazem, erythromycin, and grapefruit inhibit it. Caution is, therefore, necessary when administering CYP3A4-metabolized drugs in the presence of any of the inhibitors or inducers.

Phase II consists of covalent bonding of polar groups to nonpolar molecules to render them water-soluble and allow renal or biliary excretion. Target molecules enter phase II directly or via initial processing through phase I. A variety of polar adjuncts is transferred, including amino acids, glucuronic acid, glutathione, acetate, and sulfate. Glucuronidation is one of the major pathways of phase II biotransformation. The UDP-glucuronosyltransferase (UGT) enzyme family performs this activity. Typically, glucuronide derivatives possess less or no activity of the original drug, but in some cases, pharmacologically active compounds result. Morphine-6-glucuronide is a phase II metabolite of morphine with significant analgesic activity. As with the CYP enzymes, inducers, and inhibitors of phase II, enzymes exist and may influence the efficacy of drugs that rely on conjugation before excretion.

The first-pass effect is a feature of hepatic metabolism that also plays a role in the elimination of multiple drugs. Here, the enteric consumed drugs are exposed directly to the liver via the portal vein, where they undergo biotransformation before entering the systemic circulation. This activity reduces the bioavailability and needs to be factored into the dose administered to the patient. Intravenously administered drugs are not subject to the first-pass effect.

Extrahepatic drug metabolism takes place in the GI tract, kidneys, lungs, plasma, and skin.

Renal excretion completes the process of elimination that begins in the liver. Polar drugs or their metabolites get filtered in the kidneys and typically do not undergo reabsorption. They subsequently get excreted in the urine. Urinary pH has a significant impact on excretion, as drug ionization changes depending on the alkaline or acidic environment. Increased excretion occurs with weakly acidic drugs in basic urine and weakly basic drugs in acidic urine.

Excretion in the bile is another significant form of drug elimination. The liver can actively secrete ionized drugs with a molecular weight greater than 300 g/mol into bile, from where they reach the digestive tract and are either eliminated in feces or reabsorbed as part of the enterohepatic cycle.

Other pathways of excretion include the lungs, breast milk, sweat, saliva, and tears

Employers in Sierra, CA & Drug Testing Policies

Employers in Sierra, CA, are increasingly adopting strict drug testing policies to ensure a drug-free workplace. Many businesses require pre-employment drug screening and random tests for current employees. This approach helps in maintaining a safe and productive work environment.

Organizations also offer employee assistance programs (EAPs) that provide support for individuals struggling with substance abuse. These programs often include access to counseling and referrals to treatment centers. The U.S. Department of Labor provides guidelines to help employers implement such programs effectively.

Government Efforts with Drug Problems in Sierra, CA

The government of Sierra, CA, has intensified efforts to curb drug abuse through various initiatives. The California Department of Health Care Services offers support and resources for addiction treatment. Local authorities are also collaborating with the U.S. Drug Enforcement Administration to address emerging drug trends and enhance prevention efforts.

Sierra County has implemented community outreach programs aimed at educating the public about the risks associated with substance abuse. The Substance Abuse and Mental Health Services Administration provides grants and tools to enhance these local endeavors. Workshops and seminars are regularly held to build awareness and resilience against drug misuse.

Local Drug Busts & News in Sierra, CA

Recently, Sierra City has witnessed a series of drug busts aimed at dismantling local drug trafficking operations. Law enforcement agencies seized significant quantities of methamphetamine and opioids in coordinated raids, leading to multiple arrests.

These operations are part of ongoing efforts to combat the spread of illegal drugs within the community. Local authorities are working closely with state and federal agencies to enhance surveillance and intelligence sharing, thereby increasing the efficacy of these interventions.

Drug-related community events, such as addiction recovery workshops and anti-drug rallies, are also regularly held to engage the public in the fight against substance abuse.

Occupational Health Services

Accredited Drug Testing offers fast, reliable employment screening services in Sierra, CA. Trusted by employers nationwide for accurate results and exceptional service.

California DOT/Non DOT Physicals

California Vision Tests

California Audiograms

California Respirator Fit Tests

California Lift Tests

California Background Checks

Resources & Citations

Hindsaw and Associates

The Recovery Village

Sierra County Official Website

Sierra Wellness Center

Northern Arizona Drug Prevention Coalition (NADPC)

Luminate Treatment Centers

Gateway Foundation

Clean and Sober Community

Mental Health Association of San Francisco

Sierra Drug Testing

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

Sierra DOT Drug Testing

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

Sierra DNA Testing

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

Sierra Industry Training

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

Sierra Hair Drug Testing

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

Sierra Alcohol Testing

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

Sierra Drug Testing Services

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

Sierra 5 Panel Drug Test

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

Sierra 10 Panel Drug Test

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

Sierra On Site Drug Testing

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

Sierra DOT Physicals

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

Yes. Accredited Drug Testing maintains access to numerous collection sites nationwide, so in most cases a testing location is available close to a donor’s home, workplace, or job site. Same-day scheduling is often possible for both drug and alcohol testing needs.
Employers, DOT-regulated companies, attorneys, courts, probation departments, and private individuals all use Accredited Drug Testing locations. You do not need to be part of a large company to request testing — individuals can order testing directly.
Locations support urine drug tests, hair follicle drug tests, saliva/oral fluid drug tests, instant/rapid screening (where permitted), and evidential breath alcohol testing. Post-accident and reasonable suspicion testing are also available.
Yes. Accredited Drug Testing supports DOT-compliant urine drug testing and evidential breath alcohol testing following 49 CFR Part 40 requirements. This includes pre-employment, random, post-accident, reasonable suspicion, return-to-duty, and follow-up testing for safety-sensitive employees.
In many cases, yes. Same-day or next-day appointments can typically be arranged. This is especially important for urgent needs such as post-accident, reasonable suspicion, court deadlines, or probation compliance.
Yes. Results are released only to the authorized recipient — for example, an employer’s designated representative, the court or probation contact, or the individual who ordered the test. Results are handled securely and are suitable for policy enforcement and legal documentation.
Yes. Accredited Drug Testing offers on-site and mobile collections for employers. Mobile testing is useful for post-accident response, reasonable suspicion situations, high-volume hiring events, and remote job sites where sending employees offsite would cause downtime.
No. You do not need a physician's prescription to request most drug or alcohol tests. Individuals, employers, attorneys, and probation officers can schedule testing directly and send the donor to the assigned collection site.

Customer Reviews

Very Fun and Easy

Trish last week and Tatiana this week, very fun and easy folks to deal with. Well be using them more and more in the future.

Tom O - 12/19/2024

Sweet and helpful

Trish was amazing and got me through the sytem very fast and swift. I had a hard time hearing her a couple of times, but she was super sweet and helpful throughout the process. Highly recommend her!

Sophia Schutze - 6/19/2024

Super helpful and courteous

I've had to use this service twice for out of state physicians we've hired and both times it was super easy. Both customer service reps I spoke with were super helpful and courteous. I won't hesitate to use their service again if needed.

Alicia Rau - 6/19/2024


(800) 221-4291