You have to use an alpha banner if your thing is in alpha, and a beta banner if it’s in beta.
Things on the service.gov.uk subdomain
If your service is in beta or alpha, you must show the relevant banner in the header. It should sit directly underneath the black GOV.UK header and colour bar.
ALPHA
This is a new service – your feedback will help us to improve it.
<divclass="global-subheader container"><divclass="subheader-item phase-banner"><spanclass="phase-tag phase-tag-alpha">
ALPHA
</span><spanclass="phase-banner-message">
This is a new service – your <ahref="/feedback">feedback</a> will help us to improve it.
</span></div></div>
div.global-subheader.container
div.subheader-item.phase-banner
span.phase-tag.phase-tag-alpha
ALPHA
span.phase-banner-message
This is a new service – your will help us to improve it.
ahref="/feedback"feedback
BETA
This is a new service – your feedback will help us to improve it.
<divclass="global-subheader container"><divclass="subheader-item phase-banner"><spanclass="phase-tag phase-tag-beta">
BETA
</span><spanclass="phase-banner-message">
This is a new service – your <ahref="/feedback">feedback</a> will help us to improve it.
</span></div></div>
div.global-subheader.container
div.subheader-item.phase-banner
span.phase-tag.phase-tag-beta
BETA
span.phase-banner-message
This is a new service – your will help us to improve it.
ahref="/feedback"feedback
Things on GOV.UK
If your GOV.UK content is in beta or alpha, show the relevant banner below the page title, but above the body content. You can see what they should look like in this blog post.