{
  "id": "questions:do-i-need-an-accredited-measurement",
  "collection": "questions",
  "slug": "do-i-need-an-accredited-measurement",
  "name": "Do I need an accredited measurement to challenge a cell tower?",
  "summary": "Regulators act on measurements made by the prescribed method by an accredited body (in Switzerland, an ISO/IEC 17025 firm in the SAS register). Your own readings are for triage, not for compliance.",
  "status": "verified",
  "lastVerified": "2026-08-12",
  "data": {
    "question": "Will my own meter readings count when I complain about a base station?",
    "answer": "Usually not, and that is a procedural point rather than a judgement about your meter. Authorities act on measurements taken by the method their own rules prescribe, by a body accredited for that method: in Switzerland that means a firm holding ISO/IEC 17025 accreditation for NISV measurements, which you can verify in the public SAS register by searching for 'NISV', applying the BAFU measurement recommendations for GSM, UMTS, LTE and 5G NR. Your own readings are still useful — they tell you whether a professional measurement is worth paying for, and where in the building to ask for it — but a broadband meter cannot separate one operator's signal from every other transmitter in the band, which is exactly what a compliance assessment has to do.",
    "cluster": "measurement",
    "aliases": [
      "official EMF measurement",
      "accredited RF measurement",
      "cell tower compliance measurement",
      "NISV Messung"
    ],
    "related": [
      "organizations:sas-ch",
      "organizations:bafu-ch",
      "standards:ch-onir",
      "questions:can-i-refuse-a-cell-tower-or-smart-meter"
    ]
  },
  "sources": [
    {
      "id": "bafu-nisv-vollzugshilfen",
      "title": "Mobilfunk: Vollzugshilfen zur NISV — Messempfehlungen und Hinweis auf die für NIS-Messungen akkreditierten Messfirmen",
      "publisher": "Bundesamt für Umwelt BAFU (Switzerland)",
      "url": "https://www.bafu.admin.ch/de/mobilfunk-vollzugshilfen-zur-nisv",
      "kind": "government",
      "retrieved": "2026-08-12"
    },
    {
      "id": "sas-accredited-bodies",
      "title": "Search for accredited bodies (STS register of ISO/IEC 17025 laboratories)",
      "publisher": "Schweizerische Akkreditierungsstelle SAS (Swiss Accreditation Service)",
      "url": "https://www.sas.admin.ch/sas/en/home/akkreditiertestellen/akkrstellensuchesas.html",
      "kind": "government",
      "retrieved": "2026-08-12"
    }
  ],
  "links": {
    "self": "https://emfbase.com/api/questions/do-i-need-an-accredited-measurement",
    "html": "https://emfbase.com/questions/do-i-need-an-accredited-measurement",
    "markdown": "https://emfbase.com/questions/do-i-need-an-accredited-measurement.md",
    "collection": "https://emfbase.com/api/questions"
  }
}