Radioactivity monitoring exemption notice for indicative dose, radon, and tritium, where specified. Expiry date: 30 September 2023.
This file may not be suitable for users of assistive technology.
Request an accessible format.
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email email@example.com. Please tell us what format you need. It will help us if you say what assistive technology you use.
We use 3 types of cookie. You can choose which cookies you're happy for us to use.
Strictly necessary cookies
These essential cookies do things like remember your progress through a form.
They always need to be on.
Cookies that measure website use
We use Google Analytics to measure how you use the website so we can improve it based on user needs.
Google Analytics sets cookies that store anonymised information about:
how you got to the site
the pages you visit on dwi.gov.uk and how long you spend on each page
what you click on while you're visiting the site
Cookies that help with our communications and marketing
Some dwi.gov.uk pages may contain content from other sites, like YouTube or Flickr, which may set their own cookies. These sites are sometimes called ‘third party’ services. This tells us how many people are seeing the content and whether it’s useful.
In addition, if you share a link to a dwi.gov.uk page, the service you share it on (for example, Facebook) may set a cookie. We have no control over cookies set on other websites - you can turn them off, but not through us.