Rule 303 - COURT ARRAIGNMENTA. Arraignment shall be held on the next regularly scheduled arraignment day which occurs ten (10) days or more after the preliminary hearing or waiver of preliminary hearing.B. Defendant may enter a plea of guilty at the time of arraignment, may enter a waiver of jury trial, or may file a waiver of arraignment.C. If a written waiver of arraignment is filed prior to the scheduled date of arraignment, the scheduled date of arraignment shall be deemed the day of arraignment for the purpose of computing time limitations for filing all pre-trial motions and requests pursuant to Pa. R. Crim. P. Nos. 304, 305, and 307.D. A defendant who desires to waive formal arraignment may do so at the office of the District Justice after the District Justice has bound the case over following a preliminary hearing, or, in the alternative, following a waiver of the preliminary hearing.