When must I file an appeal, and can I extend the appeal period?

All appeals must be filed within 30 days of the date the Deputy's Decision was mailed. Each Deputy's Decision contains the final date an appeal can be filed. 
The 30-day appeal period may be extended if good cause can be shown for extending it. Good cause may exist when circumstances beyond the control of the appealing party prevented them from filing the appeal within 30 days.