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Schedule Your Drug Test

Real Occupational Testing Services is an industry leader in providing the most affordable Drug Testing and training to employers in Riverside, San Bernardino Counties and the San Gabriel Valley, with a focus on the transportation industry, including DOT exams and DMV medical exams, as well as services for individuals, local schools, trucking companies and professional offices.

Real Occupational is renown for our fast, reliable, cost effective and accurate Drug Testing. We perform these services with the highest possible attention to personable, friendly service.

 Call 1-800-690-4DNA (4362)

Call 909-937-3224

Clinic Address:
4045 E. Guasti Rd., #215
Ontario, CA 91761

Clinic Hours:

8:00 to 6:00 PM Monday – Friday

10:00 to 3:00 Saturday

To schedule your Drug Test, please call 1-800-690-4362 or fill out the form below to be contacted by one of our knowledgeable and friendly Drug Testing Consultants.

Schedule your Drug Test


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Contact Us

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