What Is an OT-5 and Why It Matters
Recently we received a lot of questions from customers asking the same thing:
What is an OT-5 is and how do I to get one?
The timing wasn’t random.
CSX began charging shippers a $600 per movement fee for privately marked railcars operating without an OT-5. Shortly after, Norfolk Southern implemented a similar fee at $450 per shipment.
It’s clear this is becoming an industry trend and something shippers can’t afford to overlook.
What Is an OT-5?
An OT-5 is how railroads account for an authorize the use of privately marked railcars. Typically cars with an “X” at the end of the reporting mark (for example, EAMX).
The OT-5 is filed through Railinc, and it essentially establishes:
- Who controls the railcar
- Where the car is authorized to move
- Which parties are responsible for it within the rail network
If you’re operating privately marked equipment, having an OT-5 in place is required to avoid service and billing issues.
What Are Railinc and Umler?
To understand OT-5s, it helps to understand the systems behind them.
Railinc serves as the central platform that railroads and equipment owners use to manage railcar data and authorizations.
At the core of Railinc is UMLER (Universal Machine Language Equipment Register) is the primary industry database that stores nearly all railcar information, including:
- Equipment specifications
- Ownership and reporting marks
- Maintenance data
- Usage and mileage
In simple terms, UMLER is the system of record for railcars across the North American rail network.
Who Files the OT-5?
One of the most common follow-up questions is:
Can the lessor file the OT‑5 on behalf of the customer?
The short answer is yes.
While most lease agreements place responsibility for the OT‑5 on the customer, a lessor can assist with (or fully handle) the filing process.
At ERS, we’ve found that many customers:
- Don’t have a Railinc account
- Aren’t familiar with the OT‑5 process
- Or simply prefer to avoid the administrative burden
For that reason, we often file OT‑5s on our customers’ behalf to ensure everything is set up correctly from the start.
Why This Matters
With railroads actively enforcing OT‑5 requirements and attaching meaningful penalties, this is no longer just an administrative detail.
It’s a cost driver and operational requirement.
Ensuring that OT‑5s are properly filed:
- Prevents unnecessary fees
- Avoids service delays
- Keeps equipment moving without interruption
A Practical Consideration
If your current lessor does not assist with OT‑5 setup or guidance, it may be worth reconsidering that relationship.
This process is a small but important part of keeping your operation efficient. It’s an area where experience and support make a difference.
