(a) Procedure for filing. A petition for reconsideration of a
decision of the Board may be filed with the Board within 30 days from
the date of the order, or, if another period is specified in the order,
then prior to the time when the order becomes final. The petition shall
state the grounds relied upon, including any matters claimed to have
been erroneously decided and shall specify the alleged errors. The
petition may be in letter form.
(b) Answer; procedure for disposition of petitions. Upon the filing
of a petition for reconsideration, each of the other parties to the
proceeding may file an answer thereto within such time as may be fixed
by the Board. If reconsideration should be granted, reargument upon
reasonable notice may be allowed in the discretion of the Board. After
reconsideration of a case the Board shall either grant or deny the
petition.
