Haw. G. Prof'l. Crtsy. & Civ. 10
Where applicable laws or rules permit an ex parte application or communication to the court, before making such an application or communication, a lawyer who manifests professional courtesy and civility makes diligent efforts to notify the opposing party or a lawyer known to represent or likely to represent the opposing party and makes reasonable efforts to accommodate the schedule of such lawyer to permit the opposing party to be represented.
Where rules permit an ex parte application or communication to the court in an emergency situation, a lawyer who manifests professional courtesy and civility makes such an application or communication (including an application to shorten an otherwise applicable time period) only where there is a bona fide emergency such that the lawyer's client will be seriously prejudiced if the application or communication were made with regular notice.
Haw. G. Prof'l. Crtsy. & Civ. 10