Penn. 37 C.P.L. 208.2(e)
As amended through January 1, 2018
Motions relating to discovery shall include a certification by counsel for the moving party that counsel has conferred or attempted to confer with opposing counsel and any unrepresented parties having an interest in the motion in an attempt to resolve the matter without court action and has been unable to reach a satisfactory resolution of the issues presented.
Penn. 37 C.P.L. 208.2(e)