234 Pa. Code § 582 : RULES OF CRIMINAL PROCEDURE — PRETRIAL PROCEDURES IN COURT CASES — Motion Procedures — Joinder-Trial of Separate Indictments or Informations

(A) STANDARDS
(1) Offenses charged in separate indictments or informations may be tried together if:
(a) the evidence of each of the offenses would be admissible in a separate trial for the other and is capable of separation by the jury so that there is no danger of confusion; or
(b) the offenses charged are based on the same act or transaction.
(2) Defendants charged in separate indictments or informations may be tried together if they are alleged to have participated in the same act or transaction or in the same series of acts or transactions constituting an offense or offenses.
(B) PROCEDURE
(1) Notice that offenses or defendants charged in separate indictments or informations will be tried together shall be in writing and filed with the clerk of courts. A copy of the notice shall be served on the defendant at or before arraignment.
(2) When notice has not been given under paragraph (B)(1), any party may move to consolidate for trial separate indictments or informations, which motion must ordinarily be included in the omnibus pretrial motion.

234 Pa. Code § 582