FCC Compliance for Wi-Fi 6, 6E, and 7 Devices
The FCC changed its 6 GHz rules twice in the past 18 months, and the IEEE finalized the Wi-Fi 7 standard in July 2025. Those updates affect which 6 GHz operating modes are allowed, the power limits devices must meet, the testing required for new Wi-Fi features, and the certification path for Wi-Fi 6E and Wi-Fi 7 products.
In this guide, you’ll learn:
- Which FCC certification path applies to a Wi-Fi device, and who reviews it
- How the 5 GHz U-NII bands differ in power limits and testing requirements
- How the 6 GHz band splits across power classes, including a new 2026 device category and a testing requirement Wi-Fi 7 makes mandatory
- When a device needs SAR testing versus an MPE evaluation
- Which 6 GHz device types still require FCC Pre-Approval Guidance
FCC Certification Paths for Wi-Fi Devices
The FCC recognizes two equipment authorization paths under Part 15: Supplier’s Declaration of Conformity (SDoC) and Certification. SDoC lets a manufacturer self-declare compliance for unintentional radiators, like a laptop’s internal clock circuits. Wi-Fi radios are intentional radiators, so they need Certification through an FCC-recognized Telecommunication Certification Body (TCB), and an FCC-recognized lab must test them first.
| Path | Applies To | Who Reviews It | Required for Wi-Fi? |
| SDoC | Unintentional radiators | Manufacturer self-declares | No |
| Certification | Intentional radiators (RF transmitters) | FCC-recognized TCB | Yes |
5 GHz U-NII Band Requirements
Wi-Fi 6 devices operating in 5 GHz use four bands under 47 CFR 15.407. Two of them, U-NII-2A and U-NII-2C, overlap with the frequencies used by weather and military radar. Devices in those bands must run Dynamic Frequency Selection (DFS) to detect radar and switch channels when it appears. The FCC opened U-NII-4 in 2020 for indoor Wi-Fi. That band sits next to the Cellular Vehicle-to-Everything (C-V2X) safety band.
| Band | Frequency | Width | DFS Required | Environment |
| U-NII-1 | 5.150–5.250 GHz | 100 MHz | No | Indoor/outdoor |
| U-NII-2A | 5.250–5.350 GHz | 100 MHz | Yes | Indoor/outdoor |
| U-NII-2C | 5.470–5.725 GHz | 255 MHz | Yes | Indoor/outdoor |
| U-NII-3 | 5.725–5.850 GHz | 125 MHz | No | Indoor/outdoor |
| U-NII-4 | 5.850–5.895 GHz | 45 MHz | No | Indoor only |
6 GHz U-NII Bands and Power Classes
The FCC opened the full 1,200 MHz 6 GHz band (5.925–7.125 GHz) to unlicensed use in 2020 and split it into four U-NII bands. A device’s power class, not just its band, decides its testing path. Low Power Indoor (LPI) devices skip coordination but stay indoors.
Standard Power devices achieve the highest output, but they must first pass an Automated Frequency Coordination (AFC) check in U-NII-5 or U-NII-7 to avoid interfering with incumbent microwave links. Very Low Power (VLP) devices need no AFC. Since the rule took effect on May 5, 2025, VLP devices can operate across the entire 6 GHz band.
| Band | Frequency | Width | DFS Required | Environment |
| U-NII-5 | 5.925–6.425 GHz | 500 MHz | No | Indoor/outdoor* |
| U-NII-6 | 6.425–6.525 GHz | 100 MHz | No | Indoor/outdoor* |
| U-NII-7 | 6.525–6.875 GHz | 350 MHz | No | Indoor/outdoor* |
| U-NII-8 | 6.875–7.125 GHz | 250 MHz | No | Indoor/outdoor* |
| Power Class | Max EIRP / PSD | Bands | Coordination | Environment |
| LPI | 30 dBm EIRP | U-NII-5, 6, 7, 8 | None | Indoor only |
| Standard Power | 36 dBm EIRP / 23 dBm/MHz | U-NII-5, U-NII-7 | AFC required | Indoor/outdoor |
| VLP | -5 dBm/MHz PSD | Entire 6 GHz band | None | Portable |
| GVP | 24 dBm EIRP / 11 dBm/MHz | U-NII-5, U-NII-7 | Geofencing | Indoor/outdoor |
What’s New: Geofenced Variable Power Devices
On January 29, 2026, the FCC adopted rules for a fourth 6 GHz device class: Geofenced Variable Power (GVP). A GVP device uses location-based controls rather than AFC spectrum coordination to achieve higher outdoor power in U-NII-5 and U-NII-7.
The FCC published the final rule in the Federal Register on February 25, 2026. GVP is a new device category, so manufacturers should expect FCC Pre-Approval Guidance review until the Commission finalizes standard test procedures.
Wi-Fi 7 Testing Considerations
The IEEE approved 802.11be, the Wi-Fi 7 standard, in September 2024 and published the final version in July 2025. The Wi-Fi Alliance had already opened its Wi-Fi CERTIFIED 7 program in January 2024. Wi-Fi 7 devices support 320 MHz channels, double Wi-Fi 6E’s maximum, and 4096-QAM modulation. Both features push transmissions toward the outer edges of U-NII-5 through U-NII-8, which raises the odds that a channel crosses a DFS- or AFC-restricted segment.
Preamble puncturing lets a device skip a busy sub-channel instead of dropping to a narrower one. It stays optional for Wi-Fi 6 but becomes mandatory for Wi-Fi 7 certification.
| Feature | Wi-Fi 6E | Wi-Fi 7 |
| Max Channel Width | 160 MHz | 320 MHz |
| Modulation | 1024-QAM | 4096-QAM |
| Multi-Link Operation | No | Yes |
| Preamble Puncturing | Optional | Mandatory |
RF Exposure Evaluation Requirements
Every Wi-Fi transmitter must undergo an RF exposure check under 47 CFR 1.1307 before it can be certified. A device that operates within 20 cm of the body needs Specific Absorption Rate (SAR) testing. A device that stays farther away, like most access points, qualifies for a Maximum Permissible Exposure (MPE) analysis instead.
| Evaluation | Applies To | Distance from Body | Measures |
| SAR | Handheld or wearable devices | Under 20 cm | Absorbed energy in tissue (W/kg) |
| MPE | Fixed or mounted devices (APs, routers) | Over 20 cm | Power density at typical distance (mW/cm²) |
6 GHz Pre-Approval Guidance by Device Type
The FCC keeps a Pre-Approval Guidance (PAG) list under 47 CFR 2.964. Equipment types on that list need FCC engineering review before a TCB can certify them. Most 6 GHz Wi-Fi categories sit on that list.
| Device Type | PAG Required |
| U-NII Dual Clients (6CD) | Yes |
| Standard Power Access Points (6SD) | Yes |
| Fixed Clients (6FC) | Yes |
| Standard-Only Clients (6FX) | Yes |
| Very Low Power Devices (VLP) | Yes |
| Low Power Indoor Access Points (6ID) | No |
| Subordinate Devices (6PP) | No |
| Indoor-Only Clients (6XD) | No |
For guidance on wireless testing, certification requirements, or global market access, contact MiCOM Labs.
Further Reading