Rule 13.8 - Pretrial Court Orders Binding in the Trial Court After Remand(a)Generally. The trial court should recognize that to alter a pretrial court order without a compelling justification would frustrate the purpose of consolidated and coordinated pretrial proceedings. The pretrial court should recognize that its rulings should not unwisely restrict a trial court from responding to circumstances that arise following remand.(b)Concurrence of the Pretrial Court Required to Change Its Orders. Without the written concurrence of the pretrial court, the trial court cannot, over objection, vacate, set aside, or modify pretrial court orders, including orders related to summary judgment, jurisdiction, venue, joinder, special exceptions, discovery, sanctions related to pretrial proceedings, privileges, the admissibility of expert testimony, and scheduling.(c)Exceptions. The trial court need not obtain the written concurrence of the pretrial court to vacate, set aside, or modify pretrial court orders regarding the admissibility of evidence at trial (other than expert evidence) when necessary because of changed circumstances, to correct an error of law, or to prevent manifest injustice. But the trial court must support its action with specific findings and conclusions in a written order or stated on the record.(d)Unavailability of Pretrial Court. If the pretrial court is unavailable to rule, for whatever reason, the concurrence of the MDL Panel Chair must be obtained.