(1) When reference is made to the date of an order for computing time, the date from which the time runs shall be the date appearing on the order.

(2) When reference is made to filing with or receipt by the department or a mediator, time shall be computed from the date a document is actually received at the department's central office in Helena, Montana. However, if the department or a mediator directs a party to file documents at a different location, time shall be computed from the date a document is actually received at that location.