10 CFR 1703.112 - Computation of time.
In computing any period of time under this part, the day of the Board's action is not included. The last day of the period is included unless it is a Saturday, Sunday or legal holiday, in which case the period runs until the end of the next working day. Whenever a person has the right or is required to take some action within a prescribed period after notification by the Board and the notification is made by mail, five days shall be added to the prescribed period. Only two days shall be added when a notification is made by express mail.