Each of our services, including 24/7 Post-Accident & Reasonable Suspicion Testing, delivers an elevated standard of results because we believe in going beyond what is required to ensure what is fundamentally necessary for our clients, employee dependability, safety, and well-being. For after-hours testing, DISA is available 24/7 for collection site management needs.
24/7 Post-Accident & Reasonable Suspicion Testing
24/7 Access to Testing When You Need It
As a provider of workplace safety and compliance services with over 30 years of experience, DISA helps thousands of companies worldwide make more informed staffing decisions by offering a broad array of industry-leading screening and compliance services.
Why You Need Post-Accident and Reasonable Suspicion Drug Tests
According to the National Drug-Free Workplace Alliance (NDWA), more than 74 percent of all current illegal drug users are employed, and up to 40 percent of industrial fatalities in the U.S. can be linked to drug abuse and alcoholism.
Testing following an accident is important as it can help determine whether drugs and/or alcohol were a factor, especially when property damage or personal injuries can result from an accident.
- Post-Accident Drug Testing - Typically occurs after an employee has been involved in an on-the-job accident that may have caused a fatality, serious injury, or significant property damage to determine whether drug or alcohol use was a factor.
- Reasonable Suspicion Testing -Also known as for-cause or probable cause testing, reasonable suspicion testing is performed when there is evidence or reasonable cause to suspect an employee of drug use. Such evidence is based on direct observation, either by a supervisor or another employee. Reasons to conduct a reasonable suspicion test include:
- Physical signs - Bloodshot eyes/dilated pupils, slurred speech, unsteady walk, shakes or tremors, unexplained sweating or shivering, fidgeting/inability to sit still, sleeping at work, or difficulty staying awake
- Behavioral signs - Attendance problems/tardiness, a pattern of absences or excessive absenteeism, a decline in performance/productivity, acting withdrawn from others
- Psychological signs - Unexplained changes in personality or attitude, sudden mood changes, angry outbursts or inappropriate laughing, inability to focus or concentrate
Explore DISA Services
Drug Testing Offerings
DOT Drug Testing
DISA helps safety-sensitive employers stay DOT compliant with expert drug testing services, including random testing, MRO review, and return-to-duty support.
Return To Duty (RTD) Drug Testing
Understand the Return-to-Duty (RTD) drug testing process after policy violations. Learn steps, SAP role, and follow-up requirements.
On-Site / Mobile Drug & Alcohol Testing
DISA’s mobile drug testing units reduce downtime and costs by bringing secure, compliant collections directly to your jobsite, 24/7/365.
Pre-Employment Drug Testing for Employers
Make smarter hiring decisions with pre-employment drug testing that improves safety, reduces risk, and ensures workplace compliance.
Medical Review Officer (MRO) Services
DISA’s certified MROs review drug test results to ensure compliance, protect employee rights, and validate the accuracy of non-negative test outcomes.
Reliable Drug Testing Services for Employers
From pre-employment to randoms, manage drug screening in one platform. Streamlined scheduling, secure results, and expert support for compliance.
DISA's Contractors Consortium (DCC)
Join over 20,000 contractors reducing redundant testing and increasing worksite safety across oil & gas, construction, industrial, and medical sectors.
DISA's Substance Abuse Professionals
If you’ve failed a drug test, find a qualified SAP near you by calling SAP Referral Services at 888-720-7277.
Electronic Custody and Control Forms (ECCF)
Speed up your drug testing process by up to 25% with eCCFs—DISA’s digital solution reduces errors, improves accuracy, and streamlines the chain of custody.
Random Drug Testing
Learn how to build an effective, compliant random drug testing policy with best practices, common questions, and industry tips.
Drug Testing Compliance Training And Support
Stay audit-ready with DISA’s expert policy creation, mock audits, training, and compliance reviews for DOT and non-DOT drug testing programs.