The Brown Act’s most-cited rule is also its most misunderstood. Government Code §54954.2(a) requires that a regular meeting’s agenda be “posted at least 72 hours before the meeting” in a location accessible to the public 24 hours a day, plus on the agency’s primary website.
That’s the entire rule. Six lines of statute. And yet it generates more questions, lawsuits, and clerk overtime than any other section of the Brown Act.
What “72 hours” actually means
It means 72 continuous hours, including weekends and holidays, ending at the moment the meeting starts. If your council meets at 6:00 PM on Tuesday, the agenda must be posted no later than 6:00 PM the prior Saturday.
Most clerks build in a buffer and post Friday morning. That’s smart practice — not because the statute requires it, but because if anything goes wrong (a website outage, a bulletin board lock that broke), you have the weekend to fix it before the deadline runs.
Where you have to post
Two places. First, a physical location accessible to the public 24/7. Historically that meant a bulletin board outside city hall. The statute is technology-neutral but case law has been clear: a locked lobby doesn’t count, and a window that’s glare-blinded after dark probably doesn’t either.
Second, your agency’s primary website — added to the statute by AB 2257 in 2020. The agenda has to be on a page that’s “directly accessible through a prominent, direct link” from the homepage. A buried sub-sub-page does not satisfy this.
What has to be on the agenda
Every item the body intends to discuss or act on, described with enough specificity that the public can understand what’s coming. The leading case is San Diegans for Open Government v. City of Oceanside (2016), which struck down vague descriptions like “Personnel matters” without further detail.
The plain-language test: would a reasonably interested resident know whether they need to attend or speak? “Discussion of zoning” fails this test. “Public hearing on proposed rezoning of 1247 Oak Street from R-1 to R-3” passes it.
What can be added after posting
Almost nothing. Government Code §54954.2(b) allows three narrow exceptions, and clerks should know all three:
- Emergency situations — threat to public health or safety. Post-and-go is fine but you have to make findings.
- Items needing immediate action — arose after posting AND require action before the next meeting. 2/3 vote required.
- Items continued from a meeting held within five days — basically a carryover, simple majority.
Almost every “urgent” item that gets walked in the day of a meeting fails one of these tests. The fact that a department head forgot to submit something is not an emergency.
What happens when you miss
If the agenda was defective and the body still acts, the action is voidable under §54960.1. Any “interested person” can demand a cure-and-correct within 90 days, and if the body refuses, file in superior court. The remedy is usually invalidation of the action plus attorney’s fees.
Two practical points: (1) the cure period is short, so date-stamping when an item was first posted is critical evidence, and (2) most lawsuits are filed by sophisticated plaintiffs (open-government groups, neighborhood associations) who specifically watch for posting defects. They will find yours.
The clerk’s checklist
If you do nothing else, do these five things:
- Set a hard internal deadline 24 hours before the statutory deadline. Treat the legal 72 hours as never your target.
- Photograph the physical posting with a timestamp. Email it to yourself. That’s your evidence.
- Verify the website link from your homepage every meeting cycle. Sites change; the link breaks; nobody notices until they need it.
- Use specific, plain-English item descriptions. If your description ends in “...and other matters as may arise,” rewrite it.
- For any late-breaking item, document the §54954.2(b) finding in writing before the meeting. After-the-fact rationales don’t hold up.
Where software helps
Most modern agenda platforms — CivicCA included — will refuse to publish an agenda inside the 72-hour window without a specific override and a documented reason. They’ll also timestamp the publish event, keep an immutable audit log, and post automatically to the public-facing page so the website-link requirement is met by default.
That doesn’t replace the clerk’s judgment. But it removes the entire class of “we forgot to update the website” defects, which is most of them.
This article is general information about California open meeting law and is not legal advice. Consult your agency’s counsel for specific situations.