SRRC Short Range Devices (SRD)
Key Takeaways
SRRC type approval is mandatory for all short-range devices (SRDs) in China that exceed micro-power limits or use regulated frequency bands.
Testing must be conducted in-country at MIIT-designated laboratories.
SRRC approval is required for common 2.4 GHz, 5 GHz, and 5.8 GHz technologies such as Bluetooth, Wi-Fi, and Zigbee.
Certified devices must be labeled with a CMIIT ID, and foreign manufacturers must appoint a local filing entity.
There is no modular approval exemption under SRRC rules.
China SRD Approval: Scope & Requirements
In China, short-range radio technologies such as Bluetooth, Wi-Fi, and Zigbee are classified as radio transmission equipment and require SRRC type approval if they exceed micro-power limits. These technologies are essential to modern wireless systems across consumer, industrial, and automotive sectors.
This page outlines key certification requirements, frequency conditions, and labeling rules for SRD technologies—organized by radio type.
Bluetooth Compliance under SRRC
Bluetooth devices—including Classic (BR/EDR) and Low Energy (LE)—are subject to mandatory SRRC type approval in China if they exceed micro-power limits or operate in regulated bands.
Key compliance requirements include:
In-country testing at MIIT-designated labs
Verification of frequency hopping behavior (for Classic Bluetooth)
Evaluation of RF parameters such as output power, bandwidth, and spurious emissions
Submission of complete technical documentation in Chinese
Labeling with a CMIIT ID, affixed to the device or manual
Bluetooth typically operates in the 2.4 GHz ISM band. If the transmit power exceeds 10 mW EIRP, SRRC approval is required. Pre-certified modules are not exempt and must undergo approval individually.
For an international perspective on Bluetooth certification and compliance frameworks, visit the Bluetooth Technology page.
Ultra-Wideband (UWB) under SRRC
UWB devices must obtain SRRC type approval in China if they transmit in the regulated UWB bands. Approval currently applies to the frequency range 7163–8812 MHz and is subject to specific technical and operational constraints.
Key compliance requirements include:
Testing at MIIT-accredited laboratories in China
Verification of emission limits and pulse characteristics
Use-case restrictions (e.g., indoor-only, non-interference)
Labeling with a valid CMIIT ID
Local representative for application and registration
Validity of SRRC certificates for UWB devices is typically limited to one year
UWB devices must operate within the defined spectrum and comply with MIIT power and bandwidth rules. Pre-certified modules are not exempt from approval.
Note: UWB operation in China is governed by MIIT Announcement No. 77 [2024], which defines the permitted frequency range and conditions for market access. This regulation supersedes the earlier MIIT No. 354 [2008] and enables UWB approval under the SRRC regime. → Read the full MIIT announcement on UWB equipment
→ For a global overview of UWB regulations, see the Ultra-Wideband – Technology and Compliance page.
Wi-Fi under SRRC
Wi-Fi devices require mandatory type approval in China under the SRRC (State Radio Regulation Committee). Only specific portions of the 2.4 GHz and 5 GHz bands are allowed. DFS/TPC requirements, firmware restrictions based on country-specific frequency allocations, and localized testing procedures—including adaptivity (LBT) testing—are strictly enforced. The 6 GHz band is entirely prohibited for Wi-Fi use in China.
Frequency Use for Wi-Fi in China
| Frequency Range | Details |
|---|---|
| 2400–2483.5 MHz |
Use Allowed: Yes DFS / TPC: No Max. EIRP (typ.): 100 mW Notes: ISM band; adaptivity (LBT) testing required1 |
| 5150–5250 MHz |
Use Allowed: Yes DFS / TPC: Yes Max. EIRP (typ.): 200 mW Notes: Indoor-only2 |
| 5250–5350 MHz |
Use Allowed: Yes DFS / TPC: Yes Max. EIRP (typ.): 200 mW Notes: Indoor-only; radar band2 |
| 5470–5725 MHz |
Use Allowed: No DFS / TPC: – Max. EIRP (typ.): – Notes: Prohibited (military use)3 |
| 5725–5850 MHz |
Use Allowed: Yes DFS / TPC: No Max. EIRP (typ.): 200 mW+ Notes: Outdoor allowed; previously licensed only4 |
| 5925–7125 MHz |
Use Allowed: No DFS / TPC: – Max. EIRP (typ.): – Notes: Reserved for IMT (5G/6G); Wi-Fi not permitted5 |
| Frequency Range | Use Allowed | DFS / TPC | Max. EIRP (typ.) | Notes |
|---|---|---|---|---|
| 2400–2483.5 MHz | Yes | No | 100 mW | ISM band; adaptivity (LBT) testing required1 |
| 5150–5250 MHz | Yes | Yes | 200 mW | Indoor-only2 |
| 5250–5350 MHz | Yes | Yes | 200 mW | Indoor-only; radar band2 |
| 5470–5725 MHz | No | – | – | Prohibited (military use)3 |
| 5725–5850 MHz | Yes | No | 200 mW+ | Outdoor allowed; previously licensed only4 |
| 5925–7125 MHz | No | – | – | Reserved for IMT (5G/6G); Wi-Fi not permitted5 |
Footnotes
1 Required under MIIT Notice [2021] No.129 for coexistence behavior
2 DFS (Dynamic Frequency Selection) and TPC (Transmit Power Control) are mandatory in these bands
3 5470–5725 MHz is reserved for military applications and not available for civil WLAN use
4 5725–5850 MHz was opened for unlicensed Wi-Fi in 2017 (previously limited to point-to-point broadband)
5 In June 2023, MIIT designated 5925–7125 MHz for IMT (5G/6G), excluding Wi-Fi 6E entirely from China
Summary
All Wi-Fi products must undergo testing in China and obtain SRRC approval before entering the market. Devices must implement static regional frequency restrictions in the firmware—dynamic or user-selectable channel settings are not allowed. DFS/TPC is mandatory in radar-sensitive 5 GHz bands. Use of the 6 GHz band is not permitted; Wi-Fi 6E functionality must be disabled in China-specific firmware versions.
For a full overview of Wi-Fi compliance requirements—including DFS, TPC, adaptivity, and spectrum-related parameters—refer to the
Overview of Core Test Parameters and Standards.
Labeling Requirements for SRD Devices
All SRRC-certified products must carry a valid CMIIT ID. Placement, format, and visibility rules depend on the device type and form factor.
→ See full labeling rules on the SRRC Type Approval – Overview page.