# Installation limit value

> A precautionary legal limit applied to a single installation at sensitive locations, used in Switzerland and set far below the general exposure limit.

- Canonical URL: https://emfbase.com/glossary/installation-limit-value
- Collection: Glossary
- Record id: `glossary:installation-limit-value`
- Status: verified
- Last verified: 2026-08-12
- JSON: https://emfbase.com/api/glossary/installation-limit-value

## Key values

- **Category:** regulation

## Definition

Switzerland's ONIR/NISV distinguishes an immission limit value, which protects against established effects and follows ICNIRP, from an installation limit value, which applies to the contribution of one installation at places of sensitive use such as homes and schools and is roughly a tenth of the ICNIRP reference level in field-strength terms. It is precautionary by design and legally binding, which makes Switzerland the standard counterexample to the claim that precautionary limits are unenforceable.

## Sources

- `ch-onir` Swiss Confederation (2000). *Ordinance relating to Protection from Non-Ionising Radiation (ONIR / NISV, SR 814.710)*. https://www.fedlex.admin.ch/eli/cc/2000/38/en — 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.