A copy of the petition for reconsideration shall be served forthwith upon all adverse parties by the person petitioning for reconsideration. Any adverse party may file an answer thereto within 10 days thereafter. Such answer shall likewise be verified. The appeals board may require the petition for reconsideration to be served on other persons designated by it.
(Amended by Stats. 1965, Ch. 1513, Sec. 175.)