Many DOT-regulated employers have heard that oral fluid drug testing has been added as an approved testing method. While this is an important regulatory update, it does not mean employers need to immediately change their existing drug testing program. Understanding what has changed and what remains the same can help employers make informed decisions while maintaining compliance.
The U.S. Department of Transportation (DOT) amended 49 CFR Part 40 to allow oral fluid specimens as an alternative to urine specimens for federally regulated drug testing. The rule establishes the requirements for oral fluid collections, laboratory testing, and Medical Review Officer (MRO) review while maintaining the same standards for accuracy, reliability, and chain of custody that apply to other DOT drug testing methods.
Oral Fluid Testing Is Another Approved Option
Oral fluid drug testing uses a saliva specimen collected by a qualified collector following DOT procedures. Like urine testing, oral fluid specimens must be analyzed by an HHS-certified laboratory, and all verified results must be reviewed by an MRO before they become official DOT test results.
The addition of oral fluid testing expands the available collection methods for DOT-regulated testing programs. However, urine drug testing remains an approved testing method, and employers should continue following their current testing procedures unless future updates to their program become appropriate.
Why This Update Matters
For employers with safety-sensitive employees, staying current with DOT regulations is an important part of maintaining compliance. Understanding how oral fluid testing fits within existing federal requirements can help employers make informed decisions as additional implementation steps continue at the federal level.
Reviewing your current drug and alcohol testing program now can also help reduce confusion later. Even if your testing process does not change today, being familiar with regulatory updates can make future transitions smoother.
What Employers Should Prepare For
Although oral fluid testing is now permitted under DOT regulations, broader implementation depends on the availability of federally approved laboratory testing and collection services that support oral fluid testing.
In the meantime, employers may benefit from reviewing their current DOT drug testing policies, communicating with their collection provider or occupational health partner, and understanding how oral fluid testing may fit into their program as implementation continues.
Compliance Requirements Still Matter
The specimen collection method may be changing, but an employer’s compliance responsibilities remain the same. DOT-regulated testing must continue to follow the procedures outlined in 49 CFR Part 40, including proper specimen collection, documentation, chain of custody, laboratory analysis, and Medical Review Officer review.
Maintaining an up-to-date drug and alcohol testing program, working with qualified testing providers, and staying informed about regulatory updates can help employers continue meeting DOT requirements while supporting a safe workplace.
Supporting Alaska Employers
Keeping up with regulatory changes can be challenging, especially for employers managing safety-sensitive positions. Having an occupational health partner who understands DOT requirements can make it easier to stay compliant while preparing for future updates.
MedPhysicals Plus provides DOT drug testing, DOT physicals, and occupational health services for employers throughout Alaska. We proudly serve employers from our locations in Anchorage, Fairbanks, Wasilla, or Soldotna. If you have questions about DOT oral fluid drug testing or other occupational health services, contact MedPhysicals Plus at admin@medphysicalsplus.com, call (907) 561-7587, or visit medphysicalsplus.com to learn more.