What it means
Embargo
How does a PR embargo work?
- Agree first. Ask the journalist whether they will honor the embargo before you send anything. Agreement must be explicit, not assumed from silence.
- Send the package. Share the release, data, quotes and assets, each clearly marked with the embargo line.
- Give lead time. Advance access lets the reporter research and write, which is the benefit they get in return.
- Lift on schedule. At the stated time, the stories go live alongside your own announcement, wire distribution and social posts.
What should an embargo line say?
State the exact date, time and time zone, and repeat the line on every document and in the email subject. A clear line avoids confusion about when material can run.
Show a sample embargo line
EMBARGOED UNTIL 9:00 a.m. ET, Tuesday, [date]
Include it at the top of the release, in the subject line of the email, and in the file name of any attachment.
When should you use an embargo?
| Good fit | Poor fit |
|---|---|
| Product launches | Breaking or reactive news |
| Funding and executive announcements | Crisis communications |
| Earnings previews and original research | Stories already in motion or public |
| Complex stories that need reporting time | Routine updates with no news value |
Use one only when the news is strong enough to justify advance access. EurekAlert warns that reporters can view arbitrary embargoes as artificial hype, which harms credibility.
Embargo or exclusive: which is better?
| Embargo | Exclusive | |
|---|---|---|
| Outlets | Several, publishing at the same time | One outlet gets the story first |
| Goal | Wide, simultaneous coverage | Depth and prominence in one place |
| Risk | One outlet publishes early | Other outlets feel left out |
What happens when an embargo breaks?
- Confirm what happened. Check that the embargo was agreed and clearly stated.
- Notify the others. Tell every other outlet they may publish now, so none is disadvantaged.
- Go live on your side. Publish your own announcement and share the news right away.
- Adjust the list. Reconsider early access for the outlet that broke it, and keep a record for next time.
Only embargo with reporters who have a record of honoring them, and keep a rapid-response plan ready.
Where are embargoes used in practice?
Scientific publishing shows how formal embargoes can be. The Canadian Medical Association Journal sends embargoed releases to registered journalists in advance. The embargo runs until 12:01 a.m. ET on the Monday of publication, reporters may speak to the author but may not publish, and CMAJ says it investigates if an outlet breaks it. PLOS ONE states that its articles are under embargo until 2 p.m. Eastern Time on the publication date. EurekAlert lets press offices make embargoed releases available to registered reporters up to two weeks in advance, as long as they follow the journal's own rules.
Frequently asked questions
What does embargoed until mean?
It means the information may be read and prepared in advance but cannot be published, broadcast or posted until the stated date and time.
Is an embargo legally binding?
It is a professional agreement based on trust, not a contract. The consequences of breaking one are reputational, such as losing early access to future news.
Can I embargo a press release on a wire service?
Some distribution services support embargoed or scheduled releases, but a scheduled release is not an embargo, because nobody sees it before the publish time. Check the service's rules.
How far in advance should I share embargoed material?
Give enough time for a thorough story. Practice varies from about a day for simple news to a week or more for complex research, so match it to the story and the outlet.
Do embargoes help with AI visibility?
A coordinated launch produces several fresh, third-party articles at once. That gives AI engines more credible sources to draw on, though no outcome is guaranteed.
Related terms and services
Press release, media pitch, media list and news hook. See 5W's Technology PR and Corporate Communications practices for launch and announcement support.
Sources
- EurekAlert: Embargoes on EurekAlert!
- CMAJ media and embargo policy
- PLOS ONE press and media embargo policy (archived)
By the 5W Editorial Team. Every 5W article is reviewed by a human editor before publication. Updated October 28, 2026.