The phrase "a policy of using" is correct and usable in written English.
It can be used when discussing a specific approach or strategy that involves the utilization of something.
Example: "The company has adopted a policy of using renewable energy sources to reduce its carbon footprint."
Alternatives: "a strategy of employing" or "an approach of utilizing".
She said, "New York City had a policy of using street workers in the nineteen-fifties and sixties".
The Bush administration has said that a policy of using inert mines might ease the problem of clearing mines that pose a threat to civilians.
Clinton has repeatedly supported earmarks as a way to bring home money for projects, while Obama adheres to a policy of using them only to support public entities.
It is true that China has a policy of using any means available — including covert intelligence collection — to improve its own technology and, through that, its economic power.
Most consultancies start off with a policy of using as many locals as possible, but many clients in emerging markets would rather take advice from foreigners.
While Jiménez denied Duterte was linked to death squads, he said the mayor had a policy of using "peace keepers" – volunteers who "roam around during day and night" and clean up the city's crime problems.
Wael has now filed legal papers alleging a deliberate policy of using the searches as a method of intimidation.
The move reflected a new policy of using economic means to try to resolve the problems of the impoverished region, which remained racked by Islamist and separatist violence.
Simply stated, Beijing has a longstanding policy of using virtually any means to extract foreign technology.
This, despite the fact that no one can now deny that Hamas had employed a deliberate policy of using children, schools, mosques, apartment buildings and other civilian areas as shields from behind which to launch its deadly anti-personnel rockets.
The question is to what extent downstream economic benefits also offset the costs required to obtain these clinical outcomes, and whether the resulting cost-to-benefit ratio justifies a standard policy of using CGMS during pregnancy [ 19, 20].
