Carbon County is one of five counties included in a proposed plan to establish a regional prison farm in Reading to cover the area. Judges in the counties involved have received notices of a conference on the matter scheduled in Harrisburg. Other counties involved are Lehigh, Schuylkill, Berks, and Northampton. A recently passed law permits various counties of the state in six regions or districts to establish central prisons and prison farms. The cost of operation would be divided by the five counties.