The phrase "activated plan" is correct and usable in written English.
It can be used to refer to a plan that has been put into action or is currently in effect.
Example: "The activated plan for the project includes several key milestones that we need to meet over the next few months."
Alternatives: "implemented plan" or "executed plan".
So if Valve can't get the censor to approve the slightly tweaked version of the game, then it'll activate Plan B: selling the Australian version.
A network of northern Tajik governors, former intelligence and defense officials, along with an unknown number of army and police commanders, apparently activated a plan for a coup to install their favored Presidential candidate, Abdullah Abdullah, a former foreign minister.
As soon as they found out about the reduced episode order and vague promise of a winter premiere, the two creators activated a plan they had been batting around for some time: viewing parties with the show's fans.
"This is the first time we've actually activated the plan," Sgt. Paul G. Shavack told Delaware Online.
In the aftermath of the storm, the Mexican navy activated a plan to provide aid.
The bank added it had activated "contingency plans" to ensure continuous provision of services to customers.
As in healthy volunteers, imagining tennis activated motor planning regions in the woman's brain, whereas picturing her house activated a brain region involved in recognizing familiar scenes.
"We have to make arrangements for this reactor in Arak not to be activated as planned, for it not to lead to an atomic bomb," Mr Fabius said.
Athletes have been forced to adjust their technique and equipment while officials have activated contingency plans to keep the competitions on schedule.
Credits: ©UNICEF Haiti/2011/Marco Dormino August 4, 2011 - In response to the arrival of Tropical Storm Emily, UNICEF Haiti activated emergency plans to cover key areas of the country.
Of the counties that activated heat plans during the summer of 2011, most activated the heat plan for ≤ 10 days (71%).
