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Drug Testing Ontario, CA

Ontario, California Drug Testing


Our testing locations do not accept payment and require a drug test order form at the time of testing. Please click the "Order a Test" button to order your test. Once your order has been processed, your drug test order form will be emailed to you.


About Ontario, California

Ontario is located in San Bernardino County, California. The city is considered part of the Inland Empire which consists of the counties of Riverside and San Bernardino. Large cities in the area include Fontana, Moreno Valley, Rancho Cucamonga, and Corona.

The Ontario International Airport, Safariland, and Sam's Club Distribution are the top employers in Ontario. Service and warehousing are the primary industries in the city. Ontario is also home to many distribution centers for such corporation as AutoZone, Genuine Parts/NAPA, and Nordstroms.

Road to California, the second largest consumer quilt show in America, is hosted in Ontario. Apart from conventions, Ontario is also home to three minor league sports teams. The Los Angeles Temptation, Ontario Fury, and Ontario Reign all play at the Citizens Business Bank Arena.

Facts about Ontario

  • The climate of Ontario is semi-arid, with very hot summers and warm winters.
  • The city is home to the LA/Ontario International Airport which is the 15th busiest airport in the United States by cargo carried.
  • Ontario has five sister cities around the world. They are: Brockville, Ontario, Canada; Guamuchil, Sinaloa, Mexico; Mocorito, Sinaloa, Mexico; Los Mochis, Sinaloa, Mexico; and Winterthur, Switzerland.
  • It takes its name from the Ontario Model Colony development.
  • The settlement was established in 1882 by the Canadian engineer George Chaffey and his brothers William Chaffey and Charles Chaffey. The Chaffeys named the settlement after their home province of Ontario, Canada.

SAMHSA Report for California

Reports published by the Substance Abuse and Mental Health Services Administration estimate that there are 2,643,000 people over the age of 12 who are dependent or abuse illicit drugs or alcohol in California. Though Ontario is nowhere near epidemic levels, drug testing and drug free workplace programs help to directly address substance abuse issues in a community.

Frequently Asked Questions about Drug and Alcohol Testing in Ontario

  • Is it okay to drug test if we don't have a drug testing policy in place?
    • Not a good idea from a liability perspective. Just think about what you will do if the person tests positive. Your best practice and to be safe from liability is to have a drug free workplace policy prior to drug testing employees. Custom written drug testing policies are available from US Drug Test Centers.
  • Can I fire an employee for being on drugs or for suspecting they are on drugs?
    • You should have a company drug free workplace policy stating the consequences of a positive drug test. You can fire an employee for a violation of your company policy.  It is not a best practice to fire someone based on suspicion of drug use.  Always check with your human resources and/or legal departments.
  • With all this Medical Marijuana, Can I Maintain a Drug Free Workplace?
    • Yes, with medical and recreational marijuana, employers still need to maintain drug free workplace programs. Various federal laws require all employers to provide a safe and healthy work environment and those with certain safety-sensitive jobs or who have federal contracts or grants to maintain a drug-free workplace. Employers whose businesses are related to public safety and security must be able to ensure their employees are not impaired while at work. Otherwise, employers face litigation of a different sort: lawsuits caused by impaired employees that involve injuries or deaths among fellow employees or the general public.
    • In States with medical and/or recreational marijuana, employers may choose whether to make an exception for medical marijuana use. But, if that is an exception that an employer decides to make, it must be an exception that is applied after a thoughtful consideration of all the safety and business risks involved and done in a manner in which the employer does not unnecessarily expose itself to potential claims for discrimination (particularly if the exception is granted to some but not all employees).

Drug-Free Workplace Policy and Programs

Employers need to establish a program that will ensure that all employees are not in any potential danger arising from injuries or accident due to alcohol and drug misuse. It is every employer’s duty to ensure a safe and healthful working condition for all employees. Employees must take reasonable care for their own health and safety and that of others, and cooperate with the employer with respect to action taken by the employer to comply with company alcohol and drug policy regulations.

US Drug Test Centers offers different drug free workplace programs. We can talk with your company to help put a drug free workplace program in place by creating a drug-free policy manual, setting up management with online drug free workplace training, enrolling all employees into random drug testing programs and more. We also give your company access to our cloud based software that allows you to schedule employee drug testing anywhere in the country 24/7!

Ontario’s Most Accurate Drug or Alcohol Testing

How do I know if the test is accurate? All of US Drug Test Centers' specimens go to a SAMHSA certified laboratory for testing. SAMHSA has an active advisory board that keeps its employees and administrators abreast of current and changing laws when it comes to drug testing. There are Mandatory Guidelines for Federal Workplace Drug Testing Programs that must carry consistencies throughout every agency and company that SAMHSA laboratories supplies. The advisory board has professionals that are uniquely qualified in their respective fields to review scientific evidence in the area of drug and alcohol treatment and testing practices.

Have more questions, visit our FAQs page for answers! https://www.usdrugtestcenters.com/question-categories.html

Testing options may vary on a site by site basis. Additional fees may apply depending on your location.

14 Testing locations in Ontario, California

3550 E Philadelphia St

Ontario, California 91761

Phone: 866-566-0261

59 S Milliken Ave

Ontario, California 91761

Phone: 866-566-0261

1101 S. Milliken

Ontario, California 91761

Phone: 866-566-0261

1101 S Milliken Ave Ste C

Ontario, California 91761

Phone: 866-566-0261

754 N. Mountain Ave.

Ontario, California 91762

Phone: 866-566-0261

750 N. Archibald Ave

Ontario, California 91764

Phone: 866-566-0261

402 S. Milliken Ave, Suite E-2

Ontario, California 91761

Phone: 866-566-0261

2920 Inland Empire Blvd # 108

Ontario, California 91764

Phone: 866-566-0261

4045 E Guasti Rd Ste 215

Ontario, California 91761

Phone: 866-566-0261

601 South Milliken Avenue

Ontario, California 91761

Phone: 866-566-0261

3200 Inland Empire Blvd

Ontario, California 91764

Phone: 866-566-0261

1910 S Archibald Ave Ste E2

Ontario, California 91761

Phone: 866-566-0261

2171 S Grove Ave Ste A

Ontario, California 91761

Phone: 866-566-0261

3200 Inland Empire Blvd Ste 10

Ontario, California 91764

Phone: 866-566-0261