"regulatory purview" is correct and usable in written English.
It is a phrase used to refer to an area or scope of regulation. For example, "This law falls under the regulatory purview of the Environmental Protection Agency".
While no king, the Federal Trade Commission had something similar to say yesterday about two companies under its regulatory purview, AOL Time Warner and Vivendi Universal of France.
It will soon come under the regulatory purview of the European Central Bank, which is likely to be more exacting than BaFin, the German overseer.
Financial Products, the primary source of the company's current troubles, had a $500-billion 500-billions portfolio that fell outside the regulatory purview of the Fed, the Treasury, and the S.E.C.
Congress has greatly expanded the Fed's regulatory purview; moreover, the central bank's basic responsibility to try to keep the economy on an even keel, experts say, will require a much greater focus on ensuring the stability of the financial system.
All the mortgage institutions that came under the regulatory purview of the O.C.C. and the O.T.S. could keep on making the same kinds of predatory subprime loans even after Household and Ameriquest had been forced to stop.
The New Deal reforms imbued traditional banking with a sense of safety, but also encouraged financiers to seek out greater profits by taking risks in areas beyond regulatory purview.
At the same time, said Dr. Fred Mettler, chairman of the radiology department at the University of New Mexico medical school, major medical sources of radiation, like CAT scanners, have fallen outside the purview of any regulatory agency.
Eswar Prasad, the China division director of the I.M.F., said on Monday that while it was unclear how much money was bypassing the banking system, it would be preferable for these kinds of dealings to occur within the purview of the financial regulatory system.
Nearly all of the at-risk land (94.6%) lay outside of currently settled areas and most (69.1%) under the purview of a single regulatory agency, the Land Use Regulatory Commission of Maine (LURC).
Because the Big Board chairman was both regulator and salesman, Mr. Grasso may have considered it well within his purview to get involved in regulatory matters.
House Speaker Paul Ryan, a Wisconsin Republican, has said he favors a regulatory solution where bump stocks come under the purview of the Bureau of Alcohol , Tobacco and Firearms.
