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Drug Testing

At C4 Operations, our comprehensive drug testing services extend nationwide, encompassing pre-employment, reasonable suspicion, post-accident, and DOT drug testing. Whether your needs are local or span across the country, you can rely on our expertise to deliver reliable and efficient drug testing solutions for your organization.

With our unwavering commitment to quality and compliance, you can trust us to provide top-notch drug testing solutions that align with your organization’s goals and values. Let us partner with you in ensuring a safe and productive work environment through our comprehensive and reliable drug testing services.


C4 Sets The Standard

At C4 Operations, we understand the paramount importance of your employees as your most valuable asset. Our mission is to deliver swift and secure access to comprehensive, up-to-date data. With our advanced report management platform, you gain efficient and effective access to crucial information. Rest assured that we stay ahead of the curve on the latest regulations and technology, ensuring full compliance with the Fair Credit Reporting Act (FCRA) and seamless automated integration with state, local, and federal reporting agencies.

We take your data’s security seriously. Our commitment to safeguarding your information allows you to trust that it remains safe and secure. Additionally, our US-based client services team is available round the clock, seven days a week, ready to address any questions or concerns you may have. Partner with C4 Operations for unrivaled efficiency, compliance, and peace of mind in your background check process

Oral Drug Swabs

C4 Operations proudly introduces FDA-approved saliva swab drug testing, revolutionizing the testing experience. Designed for ease and accuracy, our tests utilize saliva for swift and reliable results. With a range of panel options to choose from, you can tailor the testing to your specific needs. Conducted conveniently in your office, these tests yield results within 5-10 minutes, ensuring efficiency without compromise. To further enhance accessibility, swabs are available in versatile 25-packs, with the added convenience of a 2-year shelf life. 


Drug testing swabs
Urine Sample With Glove

Urine Drug Test

hair sample, curls in a bag in the hands of a laboratory assista

Hair Drug Test

breathalyzer, alcohol and car keys, the concept of driving a car

Breath Alcohol Test (BAT)

Drug Screening at a C4 Operations Location

At C4 Operations, we take pride in offering reliable drug screening services at our corporate locations in Cedar Rapids, IA and Nashville, TN. Our drug screening solutions encompass customizable panel options, ensuring you have the flexibility to choose the most suitable screening package for your organization’s needs. With our commitment to accuracy and efficiency, you can trust C4 Operations to deliver top-notch drug screening services that meet the highest industry standards.

At C4 Operations, we understand the importance of accessibility and convenience when it comes to drug screening services. That’s why we have established a strong partnership with a network of thousands of approved clinics. This collaboration enables us to extend our drug screening services nationwide, making it easier for you to find the closest facility to your office or applicant. Take advantage of our nationwide network and ensure seamless drug screening processes for your business.

Drug Screening at a Nationwide Network Location

Worker and engineer on earthworks construction site planning

Department of Transporation (DOT) Services

DOT drug testing is mandatory for employees in safety-sensitive positions under the U.S. Department of Transportation (DOT) regulations. It is a crucial measure to ensure the safety of the transportation industry, including trucking, aviation, railways, and more. DOT drug testing includes pre-employment, random, reasonable suspicion, post-accident, and return-to-duty testing to identify and deter drug and alcohol use among employees holding safety-sensitive roles. Compliance with DOT drug testing guidelines is essential for companies operating in the transportation sector, as it helps maintain a drug-free workplace and promotes the well-being of both employees and the public.
Breath alcohol testing is an integral part of safety protocols, particularly in safety-sensitive positions regulated by the U.S. Department of Transportation (DOT). Breath alcohol testing is vital for promoting safety and preventing accidents, as it helps identify and deter alcohol use among employees in safety-sensitive roles, thus safeguarding both the workforce and the public. Complying with DOT regulations for breath alcohol testing is a crucial responsibility for businesses operating within the transportation sector.

Navigating the complex realm of DOT certification compliance is now simplified through Clearinghouse C/TPA services. Take the stress out of compliance and partner with Clearinghouse C/TPA experts to ensure the smooth operation of your DOT certification process.

Explore Our Extensive Services

mobile drug testing van

Mobile Drug Testing

Catering to the needs of modern businesses, our mobile drug screening services bring convenience directly to you. Embrace hassle-free, on-the-go drug screening and maintain a drug-free workplace.

ID Badge

ID Badges

Easily recognizable identification badges for your team. Enhance security and promote a professional image with custom badges. Simplify identification and access control effortlessly.

c4 fingerprinting sq


Our expert team utilizes specialized fingerprinting cards and top-quality ink to provide professional services for individuals, organizations, and businesses. Count on us for accurate and official fingerprints, tailored to your unique needs.

house for rent

Tenant Screening

Secure, informed tenant choices. Thorough screening: credit, rental, criminal, eviction. Fast, reliable, and hassle-free. Protect your investments with confidence.

Have Questions?

Please fill out the section below. One of our sales representatives will be in contact with you shortly to discuss your organization-specific needs. We look forward to working with you!

Blain Johnson
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C4 Operations has been a valued business partner for several years. As a nation-wide recruiting agency, we have clients from coast to coast and C4 can process every request from the deepest background check to a local drug screen anywhere in the country. When we have a client company that requires any type of pre-employment screening and they don't have a reliable vendor for this type of service, I always recommend C4 Operations. The staff at C4 are always accessible and fun & easy to work with. I haven't found a more affordable, comprehensive background service company in my 14 years in the recruiting industry.
Scott Foley
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I just started using C4 for our background checks. Onboarding was super easy and quick. The representative was very responsive and walked me through the process. When I ran my first check, I was missing paperwork from the employee. C4 emailed me to notify me and sent me the required paperwork. She then followed up with a phone call to make sure I didn't have any further questions. The 24/7 support is amazing as well!!! Great experience so far.