The phrase "an official plan" is correct and usable in written English.
You can use it when referring to a formal or authorized strategy or proposal that has been approved by a relevant authority.
Example: "The city council has approved an official plan for the new park development."
Alternatives: "a formal plan" or "an authorized plan".
During the following 6 years, the country operated without an official plan until the PENCYT 2006 2010 was officially approved [ 17].
It wasn't driven by an official plan.
"A public process doesn't begin until there's an official plan," he said.
But regional government officials admit that while a so-called 'participatory process' is underway, an official plan is yet to be approved.
We need an official plan for popular national security, even if we did … At that point, someone off camera then handed Mr. Hussein a note, which he studied for a moment before chuckling and quickly changing his tone.
"I question there ever was an official plan on the part of Hitler or any other part of the National Socialist Regime systematically and physically to eliminate every Jew in Europe,' Eisen has written.
Until recently an official "planning commission", in charge of strategic four-year plans, still operated.
First, I situate an official planning document for the MSC entitled Physical Design Guidelines for the Multimedia Super Corridor in the activity of transnational planning practice.
"It's like the twin strands of a double helix of a DNA molecule," said an official planning for the vote.
His appointment was one of the most inspired decisions ever taken by an official planning committee - for, before building Delhi, Lutyens was not especially famous, having only built a scattering of Edwardian manor houses across the home counties.
Credence was given to an alleged official plan to abandon the north and west of Australia in the event of an invasion.
