# Japan general-environment limit, 1.5–300 GHz

> 61.4 V/m, equivalently 1 mW/cm² (10 W/m²) — the value that applies to Japanese 1.8 GHz, 2.1 GHz, 3.7 GHz and 28 GHz sites and to Wi-Fi.

- Canonical URL: https://emfbase.com/limits/japan-general-environment-limit-above-1-5-ghz
- Collection: Exposure limits
- Record id: `limits:japan-public-above-1500mhz`
- Status: verified
- Last verified: 2026-08-12
- JSON: https://emfbase.com/api/limits/japan-general-environment-limit-above-1-5-ghz

## Key values

- **Limit value:** 61.4 V/m — Regulatory value — legally enforceable — 電波法施行規則 appended table 2-3-2, table 1: E = 61.4 V/m, H = 0.163 A/m, 1 mW/cm² = 10 W/m². Matches the ICNIRP 1998/2020 public reference level for the same band. [japan-radio-law-table]
- **Quantity:** electric field strength
- **Frequency band:** 1.5–300 GHz
- **Population:** general public
- **Set by:** Japan Radio Radiation Protection Guidelines (電波防護指針) (Radio Radiation Protection Guidelines 1990/1997; enforced through 電波法施行規則 art. 21-3 and appended table 2-3-2 (as amended 2017))
- **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

- [ICNIRP 2020 general public reference level, 2–300 GHz](https://emfbase.com/limits/icnirp-public-power-density-above-2-ghz): 10 W/m² incident power density averaged over 30 minutes and over the whole body — the reference level that 5G mid-band and Wi-Fi compliance is judged against outside the U.S.
- [Japan Radio Radiation Protection Guidelines (電波防護指針)](https://emfbase.com/standards/japan-radio-radiation-protection-guidelines): Japan's radio-wave protection values, made binding by the Radio Law Enforcement Regulations: 27.5 V/m from 30 to 300 MHz and 61.4 V/m above 1.5 GHz for the general environment, six-minute averaged.

## Sources

- `japan-radio-law-table` 総務省 電波利用ポータル (Ministry of Internal Affairs and Communications, Japan). *電波法施行規則 第21条の3 および別表第2号の3の2 — 電波の強度の値 (Radio Law Enforcement Regulations, art. 21-3 and appended table 2-3-2: permitted radio-wave field strengths)*. https://www.tele.soumu.go.jp/j/sys/ele/medical/system/laws/index.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.