Poland's central bank NBP will modify rules of access to open market operations and money market dealers system, hoping to encourage banks to wider participation in WIBID/WIBOR rates fixing and boost development of interbank market, NBP said in a press statement.

"The central bank expects that the above-mentioned changes . . . should encourage banks to participating in WIBID/WIBOR rates fixing and also give an impulse to develop the interbank market in Poland," the statement read.

Money market dealers will have the obligation to participate in the WIBOR/WIBID fixing if they want to maintain this status, NBP said.