The Federal Communications Commission (FCC) has launched a major UWB regulatory update in the United States. The agency aims to modernize its rules for unlicensed Ultra-Wideband (UWB) devices.
The FCC published its Notice of Proposed Rulemaking (NPRM) in the Federal Register on November 2, 2026. This proceeding, ET Docket No. 26-245, marks the first comprehensive review of UWB rules since 2002.
The review addresses advances in UWB technology and the growing number of waiver requests. It also responds to petitions seeking a more flexible regulatory framework.
However, the FCC has not finalized these changes. Existing UWB requirements remain in effect.
UWB Regulatory Update: Modernizing Technical Requirements
The FCC proposes changing the definition of a UWB transmitter under Section 15.503(d). Specifically, it wants to remove the phrase “at any point in time.”
This revision would accommodate modern technologies that use stepped frequency, swept frequency, and frequency hopping. Other time-varying waveforms could also qualify under the updated definition.
Additionally, the FCC proposes changes to measurement procedures. The agency wants to exempt UWB devices from Section 15.31(c). It also proposes allowing manufacturers to test pulse-gated devices in normal operating mode under Section 15.521(d).
These adjustments aim to simplify certification procedures and reduce the need for individual regulatory waivers.
New UWB Category for Location-Sensing Devices
The FCC also proposes a new device category for location-sensing applications.
This category could support several technologies, including outdoor keyless entry systems, electronic door locks, and vehicle safety applications. Rail safety systems and precision tracking devices could also benefit.
Furthermore, the proposal would accommodate fixed and mobile devices operating indoors or outdoors.
Nevertheless, the FCC plans to maintain safeguards that protect authorized spectrum users. The proposed measures include:
- Mounting and installation height restrictions.
- Downward-directed emissions.
- Technical limits on transmission power and antenna characteristics.
- Event-driven transmissions instead of continuous operation.
- Restrictions on wide-area network operations.
- Duty cycles below 1% over a 24-hour period.
These safeguards aim to support innovation while limiting harmful interference.
FCC Reviews Existing UWB Operating Restrictions
The NPRM also examines several long-standing UWB restrictions.
For example, the FCC seeks feedback on whether to remove restrictions affecting toys, ships, aircraft, and satellites. The review also covers UWB-based autonomous drone navigation and landing systems.
Additionally, the Commission is examining Ground Penetrating Radar (GPR) requirements. It wants to determine whether existing waiver conditions should become part of the regulatory framework.
Other topics under review include emission limits, antenna requirements, duty cycles, and eligibility restrictions.
The FCC is also considering changes to marketing and labeling requirements. Furthermore, it seeks feedback on the existing “ten second” transmitter-control rule.
Finally, the agency invites comments on creating a separate category for AI-enabled UWB sensing systems.
Proposed Removal of Advance Coordination Requirements
Another important proposal concerns Section 15.525.
Currently, this provision requires UWB imaging system operators to submit written coordination information before operating their devices.
However, the FCC considers this process increasingly burdensome. The agency also reports no known instances where the coordination information helped resolve an interference concern or triggered an investigation.
Therefore, the FCC proposes eliminating the written advance-coordination requirement.
The Commission is requesting feedback on whether this change could affect interference protection or other necessary safeguards.
Public Consultation and Next Steps
The FCC invites interested parties to submit comments through its Electronic Comment Filing System (ECFS).
Stakeholders should follow these deadlines:
- Comments deadline: December 2, 2026.
- Reply comments deadline: January 4, 2027.
- Proceeding: ET Docket No. 26-245.
Importantly, this UWB regulatory update remains a proposal. Manufacturers must continue following existing requirements until the FCC adopts final changes.
Companies developing wireless devices should monitor the proceeding for potential changes to certification and operating requirements.
Entirety helps companies stay informed about regulatory developments affecting wireless technologies. Learn more through our Regulatory Intelligence Service.
Regulatory Impact Assessment
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Technical Standards?
Yes -
Type Approval & Market Access?
Yes -
Imports, Customs, Trade, or Market Surveillance?
No -
Spectrum Management?
Yes
