May 2, 2025
When it comes to drug and alcohol testing under Coast Guard regulations, the process looks a little different compared to other DOT modes. For one, alcohol violations are not recognized under Coast Guard rules—meaning the focus is entirely on drug testing.
Equally important is understanding the role of the Medical Review Officer (MRO) in the return-to-duty process. Here's what employers, Designated Employee Representatives (DERs), and others involved in compliance need to know.
Unlike other transportation modes regulated by DOT, the Coast Guard does not consider alcohol violations within its drug and alcohol testing program.
While alcohol misuse remains a general safety concern in the maritime industry, the Coast Guard’s regulatory focus is exclusively on prohibited drug use.
For employers and DERs managing compliance, this distinction is critical. Compliance efforts should be aimed squarely at drug testing results, without relying on procedures designed for alcohol testing violations seen in other modes.
When an employee tests positive for drugs under Coast Guard regulations, the return-to-duty process involves coordination with a Medical Review Officer (MRO). However, the level of MRO involvement can vary depending on the situation and the practices of the MRO.
Regardless of the level of involvement, the MRO’s role is crucial for compliance. Their input helps ensure that the return-to-duty process is handled according to Coast Guard regulations.
Working under Coast Guard regulations requires a clear understanding of how its drug testing rules differ from other DOT modes. By focusing on drug testing, effectively engaging MROs, and maintaining strict compliance at each step, employers can build a safer, more reliable maritime workforce.