Under AAA Employment Rules 40, once an award is made, it cannot be modified except as to clerical, typographic or technical errors. If the award is a dismissal, then you will have to ask the Superior Court to vacate the award and order the arbitrators to reconsider the matter, pursuant to Cal. Code Civ. Proc. 1286.2
(a)(5), or the correlative federal law 9 U.S.C. 10
Based upon your statement that you received a ruling that the case was dismissed, in my opinion, the arbitrator has no further power to consider the matter and you must request that a court review and vacate the ruling as if it were an award.
Hope this helps.
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