{
  "id": "limits:japan-public-30-300mhz",
  "collection": "limits",
  "slug": "japan-general-environment-limit-30-300-mhz",
  "name": "Japan general-environment limit, 30–300 MHz",
  "summary": "27.5 V/m, equivalently 0.2 mW/cm² (2 W/m²), across FM, VHF TV and the 150–300 MHz land-mobile bands, averaged over six minutes.",
  "status": "verified",
  "lastVerified": "2026-08-12",
  "data": {
    "standardId": "japan-rrpg",
    "population": "general-public",
    "quantity": "electric-field-strength",
    "band": {
      "minHz": 30000000,
      "maxHz": 300000000,
      "label": "30–300 MHz"
    },
    "averagingSeconds": 360,
    "value": {
      "quantity": "electric-field-strength",
      "unit": "V/m",
      "value": 27.5,
      "basis": "regulatory",
      "note": "電波法施行規則 appended table 2-3-2, table 1: E = 27.5 V/m, H = 0.0728 A/m, power flux density 0.2 mW/cm² = 2 W/m². Where several stations transmit at one site, the sum of the squared ratios to each band's value must not exceed 1.",
      "sourceIds": [
        "japan-radio-law-table"
      ]
    },
    "related": [
      "standards:japan-rrpg",
      "limits:icnirp-2020-public-400-2000"
    ]
  },
  "sources": [
    {
      "id": "japan-radio-law-table",
      "title": "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)",
      "publisher": "総務省 電波利用ポータル (Ministry of Internal Affairs and Communications, Japan)",
      "url": "https://www.tele.soumu.go.jp/j/sys/ele/medical/system/laws/index.htm",
      "kind": "regulation",
      "retrieved": "2026-08-12"
    }
  ],
  "links": {
    "self": "https://emfbase.com/api/limits/japan-general-environment-limit-30-300-mhz",
    "html": "https://emfbase.com/limits/japan-general-environment-limit-30-300-mhz",
    "markdown": "https://emfbase.com/limits/japan-general-environment-limit-30-300-mhz.md",
    "collection": "https://emfbase.com/api/limits"
  }
}