163,318 holders of CDL and CLP licenses are registered as "prohibited"
The latest FMCSA report reveals that 163,318 holders of CDL and CLP licenses are registered as “prohibited” in the agency’s Drug and Alcohol Clearinghouse. This center is an online database that monitors violations of the FMCSA’s drug and alcohol testing program. Under this prohibition record, those drivers who do not promptly begin the return-to-duty (RTD) process could lose their licenses.
Starting November 18, 2024, the FMCSA will require State Driver Licensing Agencies (SDLAs) to revoke the commercial driving privileges of those marked as “prohibited” in the Drug and Alcohol Clearinghouse. This will result in a license downgrade until the driver completes the RTD process, as reported by the agency.
The deadline was set by a second Final Rule (Clearinghouse-II) issued by the FMCSA in October 2021. Additionally, the first Final Rule of the Drug and Alcohol Clearinghouse, effective January 6, 2020, requires carriers to check the online database before hiring a driver and once a year for existing drivers.
This rule aims to provide real-time access to a driver’s drug and alcohol violation records, including positive substance tests and test refusals, to employers, law enforcement agencies, State Driver Licensing Agencies, and law enforcement officials.

How does the Return-to-Duty (RTD) process work?
Drivers who have failed a drug or alcohol test under FMCSA regulations must go through the RTD process before returning to vehicle operation. According to the FMCSA, before an employer allows a driver to return to work to perform a safety-sensitive function after violating prohibitions, the driver must comply with the following:
- Be evaluated by a Substance Abuse Professional (SAP)
- Participate in/complete the prescribed treatment program
- Pass a return-to-duty drug and/or alcohol test with the following results: alcohol with a result indicating an alcohol concentration of less than 0.02; and/or controlled substances with a verified negative drug use result
- Have a documented follow-up testing program
It is crucial to complete the steps of the RTD process in the order specified by the FMCSA and correctly in the Clearinghouse. Once the driver passes the evaluation, they can return to their duties. Compliance with these requirements is essential to avoid penalties and ensure public safety.

Trucks or War Machines? The Mystery of Spiked Wheels on American Highways
They look like something straight out of an action movie, yet they can be spotted on highways across the United States. The striking chrome spikes protruding from some truck wheels spark curiosity, controversy, and one important question: Are they actually dangerous, or just another expression of trucker culture?

Nevada’s Extraterrestrial Highway and Other Desert Mysteries
From a highway near Area 51 to the desert where a vehicle broke the sound barrier, Nevada is home to some of America’s most fascinating road stories.

California: Scammers Impersonate FMCSA’s Motus System, Putting Trucking Companies’ Data at Risk
The Federal Motor Carrier Safety Administration (FMCSA) is warning trucking companies about four fraudulent websites impersonating its new federal registration system. Scammers are using emails that demand urgent updates to redirect carriers to fake portals. The warning also applies to California motor carriers.

Do You Know How Much Money Your Truck Has Lost Sitting Idle in 2026?
Hours spent waiting at warehouses and distribution centers continue to cost American truck drivers time and money. Federal research has estimated more than $1 billion in annual lost driver income, while the FMCSA explores new ways to address detention time and its impact on road safety.

The Incredible Story of a Grave in the Middle of an Indiana Road
On a rural road in Indiana, drivers must navigate around a grave that has remained in the same location since 1831. The story of Nancy Kerlin Barnett, her family, and an unusual engineering decision has turned this stretch of pavement into one of the state’s most famous roadside curiosities.

Autonomous Trucks: Who Places the Warning Triangles When There’s No Driver?
A federal exemption allows warning triangles to be replaced with cab-mounted beacons on certain autonomous trucks. The decision addresses how to warn approaching traffic when no one can step out of the cab.
