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SERVE San Gabriel Valley

Drug Testing, DNA Testing and Employee Screening in Diamond Bar, CA

Real Occupational Testing Services offers fast and reliable drug testing, DNA testing and employee background screening services to the San Gabriel Valley community of Diamond Bar, CA. Testing is available at our main office in Ontario as well as on-site employee testing at any site you designate in Diamond Bar or any other work site in eastern Los Angeles County. For nine years Real Occupational has served Diamond Bar businesses and individuals with affordable, state-of-the-art testing services.

With a population of 55,951 people and many businesses operating within the city of Diamond Bar, individuals and business owners alike have come to depend on Real Occupational’s testing services. Whether it’s a small business screening employees or a local school requiring teen drug testing, Real Occupational meets the demand with prompt and cost-effective solutions.

DNA Testing in Diamond Bar, CA

We offer residents of Diamond Bar the most affordable, court admissible, AABB accredited DNA testing available with 99% accuracy guaranteed. We offer the following DNA tests:

Whether it's grandparents, aunts, uncles or parents, a variety of test options are available to determine any relationship. To schedule your DNA Test, please call 1-800-690-4DNA (4362) to speak to one of our knowledgeable and friendly DNA Testing Consultants.

Drug Testing in Diamond Bar, CA

Real Occupational also offers professional offices, local schools and residents in Diamond Bar the most complete and affordable drug testing and screening services in the Inland Empire, focusing on:

Our laboratories are SAMHSA (Substance Abuse & Mental Health Services Administration) Certified.

Employee Drug and Alcohol Testing in Diamond Bar, CA

We offer the most affordable on-site drug testing to employers throughout Diamond Bar. Testing effectively discourages drug usage in employees of every industry and workplace. For your convenience, our representative will come to your facility in Diamond Bar to take the collections on your employees. On-site testing can be conducted on large groups while maximizing productivity and cost efficiency for your company.

DMV, DOT and Federal Drug Testing

If you operate a public transportation business in Diamond Bar, you are required to comply with the US Department of Transportation. Real Occupational provides fast and affordable Federal Drug Testing, which is required of drivers operating buses, trucks, boats, aviation, railroad ships and vessels, pipeline and public utilities.

We also perform DOT / DMV Medical Exams for commercial drivers renewing or getting their Commercial Drivers License. For your convenience our Diamond Bar clinic accepts walk-ins on weekdays and Saturdays with little to no wait-time and will give same-day DOT Certificates.

Real Occupational Testing Services has doctors on staff that will examine if applicants are physically qualified to perform required job duties.

Employee Background Screening and Background Checks in Diamond Bar, CA

Real Occupational is proud to offer fast, affordable, and reliable employee background screening services. We offer many different types of background screens depending on your needs as an employer, including:

If you have questions regarding employee background screening or would like more information, please contact us.

Ink Card and Live Scan Fingerprinting Services in Diamond Bar, CA

Real Occupational Testing Services provides the fastest, more accurate and convenient fingerprinting services to those in Diamond Bar seeking to be fingerprinted by any federal or state agency or as a condition for employment. No appointments are needed. Our specially trained staff will assist with your paperwork, take your fingerprints and process the request.

We provide the following fingerprinting services:

If you have questions or would like more information about our fingerprinting services in Diamond Bar, CA, please contact us.


The Los Angeles suburb of the City of Diamond Bar is an upper class community located in the southeastern corner of the San Gabriel Valley, and ranked one of the best cities to raise a family. The city features golf courses, open spaces and rustic charm, as well as the first hydrogen station to be built in Southern California.

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Contact Us

Real Occupational Testing Services
4045 E. Guasti Rd. #215
Ontario, CA 91761
1-800-690-4362 | Email