The phrase "a carefully regulated" is correct and usable in written English.
It can be used to describe something that is managed or controlled with precision and attention to detail.
Example: "The industry operates under a carefully regulated framework to ensure safety and compliance."
Alternatives: "a meticulously controlled" or "a strictly managed".
Anatomy of an anti-hype: this much we know, or have been permitted to by a carefully regulated drip feed.
A carefully regulated postal service unprecedented for its standards of speed, frequency, and security was evolved during this period.
Chandra generates its electrical power from the solar arrays, stores it in three banks of batteries, and distributes it in a carefully regulated manner to the Observatory.
This energy is then stored in three banks of batteries and distributed in a carefully regulated manner to the Observatory by the electrical power system.
She also oversees Joshua's medical needs: he has to have regular insulin injections, a carefully regulated diet and a check of his glucose levels three times a day.
In the polarized atmosphere of the waterboarding debate, it remains to be seen whether Congress or the public will endorse a carefully regulated program to find new ways of persuading people to give up their secrets.
But in a more carefully regulated world it should become less reluctant.
With the borders sealed, Paraguay became of necessity almost self-sufficient; only a small carefully regulated commerce was permitted with Argentina and Brazil.
In a hint of how President Bush might resolve the debate over embryonic stem cell experiments, Senator Bill Frist, a transplant surgeon and close ally of the president, announced today that he supported federal financing for the research "within a very carefully regulated, fully transparent framework".
Jentsch, an associate professor of psychology and psychiatry, has founded an organization at UCLA to voice support for research that uses animals in what he calls a humane, carefully regulated way.
Wound healing is a complex, carefully regulated process requiring communication between different cell types.
