For 40 years, Paramex has been a locally owned and family-operated DOT services company proudly serving the Chico, California community. We provide a full range of solutions to help local companies and professional drivers maintain a drug-free, safe, and compliant workplace.
We recognize that drugs and alcohol are a growing challenge in every community—but we also believe that citizens and business owners can create spaces where safety and responsibility come first. Testing builds accountability and trust in the people who build our structures, prepare our food, care for our children, travel our roads, protect our neighborhoods, and make decisions for our city.
At Paramex, we’re honored to provide services that truly make a difference. Let us help your business, school, health-care facility, or family maintain a safe and dependable environment—because a stronger community starts with safety.
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Corner of 5th Ave. and Sherman
Same street as the Butte County Library
1450 Sherman Avenue
Chico CA, 95926
Many clients and companies need 24-7 services
Paramex has a 24-7 membership option available for this access.
Paramex has helped thousands of drivers with their DOT Physicals. We offer fast appointments with convenient online scheduling. Our short wait times, affordable pricing, and knowledgeable staff, will get you back on the road in no time. *Big rig parking available on 5th Avenue.
Why Choose Paramex?
Paramex Screening Services proudly serves both local and large-scale companies. Being locally owned and operated in Chico, California allows us to offer our community a trusted, cost-effective alternative to large internet-based providers. Even if your testing program is managed through another company, chances are your collection will still take place in our office—and often at a higher cost than if you worked directly with us. Partnering directly with Paramex saves you both time and money.
Drug and alcohol testing requires a professionally trained collection site to properly complete the chain of custody process required for company, court, and DOT compliance. At Paramex, we’re your one-stop shop for collections, testing, and reporting. We provide testing through urine, hair, nail, blood, and saliva, and our services can be tailored for:
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DOT-regulated and non-regulated companies
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Families, probation, and court-ordered testing
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School programs, towing companies, and 24/7 post-accident needs
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Onsite testing, supervisor training, and safety-sensitive programs
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City, county, and state agencies including police, fire, and ambulance services
We proudly partner with nationally accredited laboratories to deliver fast, accurate, and state-of-the-art testing services.
Why pay more with large internet companies? Paramex delivers affordable, local solutions backed by federal-certified labs—bringing big-lab accuracy at a local price. We’re small enough to know our customers by name, yet large enough to offer the most advanced testing options available today.