The Federal Communications Commission yesterday refused to set aside its decision to stop monitoring certain business practices by broadcasters, including airing of false advertising and use of a station for personal gain.

For some years, the FCC prohibited broadcasters from using a station for personal gain; airing misleading advertising or not airing a sold ad; distorting audience ratings, and other business practices.

In January, the FCC argued it should no longer regulate what could be overseen by the courts or other agencies. The FCC called the rules "regulatory underbrush" that could "impede competition," and argued "the policies relate to areas which often are not within this commission's area of expertise and where either alternate remedies exist to deter the activity . . . or where marketplace forces will correct the particular abuse."

The FCC also is considering the deregulation of fraudulent billing practices and network clipping, where a station "clips" a program to squeeze in an extra commercial or visa versa.

The Media Access Project, a Washington public interest group acting on behalf of a consumer group, The Telecommunications Research and Action Center, had filed an appeal with the agency to reconsider its action. The FCC refused on the grounds that the request was "without merit."