{
  "id": "limits:brazil-public-400-2000mhz",
  "collection": "limits",
  "slug": "brazil-public-limit-400-2000-mhz",
  "name": "Brazil public limit, 400–2000 MHz",
  "summary": "f/200 W/m² (f in MHz) by legal adoption of ICNIRP — 4.5 W/m² at 900 MHz — enforced by Anatel through station licensing since 1 March 2024.",
  "status": "verified",
  "lastVerified": "2026-08-12",
  "data": {
    "standardId": "brazil-anatel-emf",
    "population": "general-public",
    "quantity": "power-density",
    "band": {
      "minHz": 400000000,
      "maxHz": 2000000000,
      "label": "400–2000 MHz"
    },
    "averagingSeconds": 360,
    "formula": "f/200 W/m², E = 1.375 √f V/m (f in MHz)",
    "value": {
      "quantity": "power-density",
      "unit": "µW/m²",
      "value": 2000000,
      "max": 10000000,
      "basis": "regulatory",
      "note": "Brazil does not set an independent numerical value: Lei 11.934/2009 adopts the limits recommended by the WHO, and Ato 17.865/2023 puts the ICNIRP values in force in Anatel's technical requirements. The range is the band edges, 2 W/m² at 400 MHz to 10 W/m² at 2000 MHz.",
      "sourceIds": [
        "brazil-anatel-ato-17865",
        "brazil-lei-11934"
      ]
    },
    "related": [
      "standards:brazil-anatel-emf",
      "limits:icnirp-2020-public-400-2000"
    ]
  },
  "sources": [
    {
      "id": "brazil-anatel-ato-17865",
      "title": "Ato nº 17.865, de 30 de dezembro de 2023 — limites de exposição a CEMRF entre 8,3 kHz e 300 GHz, adotando as recomendações ICNIRP 2020",
      "publisher": "Agência Nacional de Telecomunicações (Anatel), Brazil",
      "url": "https://informacoes.anatel.gov.br/legislacao/atos-de-requisitos-tecnicos-de-gestao-do-espectro/2023/1914-ato-17865",
      "year": 2023,
      "kind": "regulation",
      "retrieved": "2026-08-12"
    },
    {
      "id": "brazil-lei-11934",
      "title": "Lei nº 11.934, de 5 de maio de 2009 — limites à exposição humana a campos elétricos, magnéticos e eletromagnéticos até 300 GHz",
      "publisher": "Presidência da República (Brazil), via Anatel",
      "url": "https://informacoes.anatel.gov.br/legislacao/leis/426-lei-11934",
      "year": 2009,
      "kind": "regulation",
      "retrieved": "2026-08-12"
    }
  ],
  "links": {
    "self": "https://emfbase.com/api/limits/brazil-public-limit-400-2000-mhz",
    "html": "https://emfbase.com/limits/brazil-public-limit-400-2000-mhz",
    "markdown": "https://emfbase.com/limits/brazil-public-limit-400-2000-mhz.md",
    "collection": "https://emfbase.com/api/limits"
  }
}