# China public limit, 30–3000 MHz

> 12 V/m, equivalently 0.4 W/m², across the FM, TV, and sub-3 GHz cellular and Wi-Fi bands — the strictest widely enforced national limit in that range apart from Russia's.

- Canonical URL: https://emfbase.com/limits/china-public-limit-30-3000-mhz
- Collection: Exposure limits
- Record id: `limits:china-public-30-3000`
- Status: verified
- Last verified: 2026-08-12
- JSON: https://emfbase.com/api/limits/china-public-limit-30-3000-mhz

## Key values

- **Limit value:** 400,000 µW/m² — Regulatory value — legally enforceable — GB 8702-2014 Table 1 lists E = 12 V/m, H = 0.032 A/m, B = 0.04 µT and Seq = 0.4 W/m² for this band, as RMS over any continuous 6-minute interval. [china-gb-8702]
- **Quantity:** power density
- **Frequency band:** 30–3000 MHz
- **Population:** general public
- **Set by:** China GB 8702-2014 electromagnetic environment control limits (GB 8702-2014, effective 1 January 2015)
- **Kind:** Regulatory — legally enforceable
- **Averaging time:** 6 minutes — A measurement must use the same averaging before it can be compared with this value.

## Related records

- [China GB 8702-2014 electromagnetic environment control limits](https://emfbase.com/standards/china-gb-8702-2014): China's mandatory national standard for public exposure from 1 Hz to 300 GHz, referencing ICNIRP 1998 and IEEE but setting values of its own that are stricter in the mobile bands.
- [ICNIRP 2020 general public reference level, 400 MHz–2 GHz](https://emfbase.com/limits/icnirp-public-reference-level-400-2000-mhz): Frequency-scaled reference level f/200 W/m², giving 4.5 W/m² at 900 MHz and 9 W/m² at 1800 MHz.

## Sources

- `china-gb-8702` Ministry of Ecology and Environment of the People's Republic of China (2014). *GB 8702-2014 电磁环境控制限值 (Controlling limits for electromagnetic environment)*. https://www.mee.gov.cn/ywgz/fgbz/bz/bzwb/hxxhj/dcfsbz/201410/t20141022_290449.htm — regulation, link checked 2026-08-12

Data licence: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Dataset version 2026.08.1. Retrieved from EMFBase, https://emfbase.com.

This record is reference data, not medical or legal advice. Regulatory limits, scientific guidelines and precautionary values are labelled separately and answer different questions.