Draft · pending legal review
Terms of use
The ground rules for using Five Sigma.
DRAFT — still under legal review. Items in [brackets] will be completed before these terms are final.
Who we are
[Operator name / legal entity and contact address.]
Using the site
Five Sigma is free to read. Please don’t misuse it: no attempts to disrupt the service, scrape it at a scale that degrades it, submit spam through our forms, or break the law.
Our content
Articles, figures, interactive tools and code on this site are © Five Sigma unless stated otherwise. You may quote short passages with attribution and a link. [Licence decision pending: e.g. all rights reserved, or a Creative Commons licence such as CC BY-ND 4.0 for article text.] Third-party material, such as images from NASA or ESA, is credited where it appears and remains under its own licence.
Educational content, not professional advice
We work hard to be accurate (see The 5σ Standard), but science changes and mistakes happen. Content is provided for education and general information, without warranties. Please check primary sources before relying on any figure for important decisions. We correct errors publicly on our corrections page.
Links to other sites
We link to papers, institutions and other sites. We don’t control them and aren’t responsible for their content.
What you send us
When you submit an error report or feedback, you allow us to use it to improve and correct the site. We won’t publish your name or email without your permission.
Liability
[Limitation of liability clause, to be drafted for the applicable jurisdiction.]
Governing law
[Governing law and jurisdiction.]
Changes
We may update these terms; the date below shows the latest version.
Last updated 12 October 2026 (draft)