Mobile On-Site Drug & Screening Services

SignatureLab Field Network LLC delivers mobile, on-site specimen collection services exclusively for employers and organizations. We specialize in DOT and non-DOT urine collections, rapid testing (CLIA-waived), oral fluid collections, and ink fingerprinting—performed with strict chain-of-custody procedures.

Our mobile technicians respond after hours, weekends, and holidays to support random testing, post-accident, reasonable suspicion, and pre-employment collections. By bringing compliant collection services directly to your location, we reduce downtime, increase compliance, and simplify workforce screening.

Four young adults, two men and two women, standing together in an industrial or workshop setting with equipment and shelves in the background. They are smiling and appear to be colleagues or students.
A drug testing form on a clipboard, a specimen container, and a box of specimen labels on a wooden desk.

DOT & Non-DOT Drug Testing

Strict adherence to federal regulations for DOT employees and customizable panels for non-regulated workplaces. We ensure chain-of-custody integrity.

Our Services

Comprehensive Screening Solutions

From regulated DOT testing to rapid results, we bring certified collection services to your doorstep.

Close-up of a fingerprint card showing multiple fingerprint images and a section of written instructions or identification information in black and white.

Ink Fingerprinting

Professional ink fingerprinting services for background checks, licensing, and employment verification. We come to you to minimize downtime.

Medical testing equipment with several test tubes filled with blood samples next to a pen and a white electronic device.

Rapid CLIA-Waived Testing

Get fast, reliable answers with our rapid screening options. Ideal for immediate hiring decisions or time-sensitive situations.

Why Choose SignatureLab Field Network?

We understand that compliance and convenience are critical. Our mobile service is designed to keep your operations running smoothly without sacrificing accuracy.

Certified & Compliant

Our collectors are fully certified and follow strict chain-of-custody procedures to ensure every result stands up to scrutiny.

After-Hours & Weekend Service

Accidents and urgent needs don't always happen 9-to-5. We are available when you need us most, including short-notice calls.

Mobile Convenience

We come to your office, job site, or facility. Save time and reduce liability by keeping your employees on-site.


1. Book Your Service

Contact us to schedule a scheduled appointment or request urgent, short-notice dispatch for immediate needs.

A healthcare professional wearing a white coat and stethoscope filling out a medical form on a clipboard with a black pen.

Simple, Streamlined Screening

We bring the lab to you in three easy steps, minimizing downtime and maximizing convenience


2. Mobile Collection

Our certified collector arrives at your workplace, school, or specified location to perform the screening professionally.


3. Receive Results

Secure, compliant results are processed and delivered quickly, ensuring you maintain compliance without delay.

Frequently Asked Questions

Answers to common questions about our mobile testing services.

Is the ccustody maintained during mobile collection?

Absolutely. Our certified collectors strictly adhere to federal and industry chain-of-custody procedures (CCF) to ensure every specimen is tracked, secure, and legally defensible from collection to lab analysis.

Do you offer after-hours or urgent testing?

Yes. We understand that incidents don't always happen during business hours. We offer after-hours, weekend, and short-notice response services for post-accident or reasonable suspicion testing.

Where do you provide your services?

We are a fully mobile service. We come directly to your office, job site, school, or facility. Please contact us to confirm if your location falls within our immediate dispatch zone.

What types of tests can you perform on-site?

We specialize in DOT and Non-DOT drug testing, rapid CLIA-waived testing, breath alcohol testing, and ink fingerprinting. We can tailor the screening panel to meet your specific company policy or regulatory requirements.

🔹 We are a collection-only service provider.
🔹 All testing is performed on behalf of employers or authorized agencies.
🔹 No direct-to-consumer or walk-in testing is offered.

Reliable Testing, Delivered to You.

Don't let logistics delay your compliance. Schedule your professional on-site screening today.