Haw. R. App. P. 30
When the brief for appellant is not filed within the time required, the appellate clerk shall forthwith give notice to the parties that the matter will be called to the attention of the appellate court on a day certain for such action as the appellate court deems proper and that the appeal may be dismissed. When the brief of an appellant is otherwise not in conformity with these Rules, the appeal may be dismissed or the brief stricken and monetary or other sanctions may be levied by the appellate court. When the brief of an appellee is not filed within the time required, or is not in conformity with these Rules, the brief may be stricken and monetary or other sanctions may be levied by the appellate court. In addition, the appellate court may accept as true the statement of facts in the appellant's opening brief. When a brief is filed, an appellate court shall not dismiss an appeal, accept as true the statement of facts in the appellant's opening brief, impose a monetary sanction, or strike a brief without an opportunity to resubmit an amended brief, without prior notice to the affected party, and without a meaningful opportunity to be heard.
Haw. R. App. P. 30