(1) If an interested party is required, or permitted, to file documents, the interested party must file the documents with the board using one of the following methods and addressing the documents to the board: 

(a) mail filings to P.O. Box 8020, Helena, MT 59624-8020;

(b) hand deliver filings to 1315 Lockey Avenue, Helena, MT 59601;

(c) e-mail filings to uiappealsboard@mt.gov; or

(d) any other method permitted by the department.

(2) A document is filed on the date the board receives it. It is the filing party's responsibility to ensure that the board receives all documents timely.

(3) An interested party may submit written argument for the board's consideration. The interested party must file the written argument with the board no later than five business days from the date of the scheduled review proceeding.