The phrase "announcement rules" is correct and usable in written English.
It can be used when referring to the guidelines or protocols that govern how announcements should be made or structured.
Example: "Before we proceed with the event, let's review the announcement rules to ensure everyone is on the same page."
Alternatives: "guidelines for announcements" or "announcement guidelines".
"The announcement rules that during the break, instructors may not leave their posts, but must report in a timely manner to their schools to assist those students who choose to come and study on their own, and use the Internet to post assignments and review materials," the reports said.
The announcement rules out a head-to-head clash with Labour leader Ed Miliband ahead of the 7 May poll.
Upper limits are in effect, but only to enforce EU-wide announcement rules for larger projects (in construction, currently 4.845 million euros).
Friday's announcement extended rules on exhaust reduction for cars and light-duty trucks and proposed new greenhouse gas pollution limits for medium- and heavy-duty trucks.
Summarizing their findings, the award announcement said: "Rules that are imposed from the outside or unilaterally dictated by powerful insiders have less legitimacy and are more likely to be violated.
Today's announcement effectively rules out the possibility of any new coal stations being built without around a quarter of the station being fitted with fully operational capture and storage technology from the outset.
Official announcement and rules.
This week's White House announcement of rules that will, for the first time, limit the carbon dioxide emission from new power plants is a big victory for Americans who want to see the U.S. move away from outdated and dirty energy sources like coal and toward clean sources like wind and solar.
The announcements and rules features should be especially helpful for large Groups that want to allow open contributions from members, but thwart spam by defining exactly what content people can post and in what format.
Financial markets gave a largely negative reaction Monday to the €85 billion, or $111.2 billion, bailout package for Ireland announced Sunday night, and to the announcement of new rules for dealing with debt crises in the euro zone after 2013.
Friday's announcement of new rules is a bit like calling the oil industry's bluff on its resolve to drill more.
