TMS guide
ELD vs TMS vs GPS Tracker
These three get used interchangeably in conversation and are not interchangeable in an audit. Only one of them is mandated, and it is not the one most people mean.
- The ELD is the only one of the three with a regulatory mandate behind it.
- A GPS tracker is not an ELD and does not satisfy an Hours-of-Service requirement.
- A TMS is the commercial record; neither of the other two can invoice a load.
Side by side
| ELD | TMS | GPS tracker | |
|---|---|---|---|
| Primary job | Record driver Hours-of-Service | Run and bill the freight | Report asset position |
| Mandated? | Yes, for most commercial operations | No | No |
| Attached to | The driver and the engine | The order | The asset |
| Works without a driver? | No | Not applicable | Yes — the point of trailer hardware |
| Produces an invoice? | No | Yes | No |
Why the confusion is expensive
Two mistakes recur. The first is assuming a tracker covers a compliance obligation — it does not, and discovering that during an audit is the wrong time. The second is assuming an ELD platform's dispatch module is a TMS. It may be enough for a small operation, but the moment settlement, accessorials, or owner-operator pay get complicated, the gap shows.
How they connect
In a working setup the ELD or driver app supplies position and duty status for powered units, dedicated hardware covers unpowered assets, and both feed the TMS, which holds the order they relate to. The integration question — which feeds what, over what interface — is the one to settle before signing anything. The integration checklist covers what to ask.
Related reading
Questions
Does a GPS tracker satisfy the ELD mandate?
No. An ELD must be certified and must record Hours-of-Service in a prescribed form. A location tracker does not meet that requirement regardless of how often it reports.
Does an ELD replace a TMS?
No. ELD platforms increasingly bundle dispatch features, but the ELD record itself is a compliance artifact. Orders, rates, documents, invoicing, and driver settlement live in a TMS.
Do I need all three?
Most commercial carriers need an ELD by regulation and a TMS to run the business. Dedicated tracking hardware is optional and is usually driven by unpowered assets.
Is TruckerPro TMS available today?
Yes. TruckerPro TMS is a live product for Canadian carriers at truckerpro.ca. The private-pilot notice on this site refers to TruckerPro GPS hardware, which is a separate and unlaunched project.
Share a pilot use case
Tell us what you would track and where it operates. This records interest; it does not place an order.