FMCSA requests public comment on an application for a 5-year exemption submitted by Intelligent Motorist Alert Messaging Systems (IMAMS). The applicant seeks an exemption for autonomous commercial motor vehicles (CMVs) from the regulation that requires the use of traditional warning devices to alert other vehicles when the CMV has become disabled. The exemption would allow autonomous CMVs to use IMAMS dynamic digital LED messaging platform as an alternative to traditional warning devices. FMCSA requests public comment on IMAMS's application.
This is a notice published in the Federal Register by Transportation Department, Federal Motor Carrier Safety Administration. Notices communicate information, guidance, or policy interpretations but may not create new binding obligations.
This document is classified as a notice. It may or may not create enforceable regulatory obligations depending on its specific content.
Notice of application for exemption; request for comments.
Comments must be received on or before December 31, 2025.
| Document Number | 2025-21619 |
| FR Citation | 90 FR 55236 |
| Type | Notice |
| Published | Dec 1, 2025 |
| Effective Date | - |
| RIN | - |
| Docket ID | Docket No. FMCSA-2025-0688 |
| Pages | 55236–55237 (2 pages) |
| Text Fetched | No |
| Part | Name | Agency |
|---|---|---|
| No linked CFR parts | ||
| Type | Proposed | Final | Method | Conf |
|---|---|---|---|---|
| No paired documents | ||||
The full text for this document hasn't been fetched yet. The system will automatically retrieve it during the next processing cycle.