A court must confirm an award unless there are grounds to vacate, modify or correct it, and an arbitrator's mistake about the facts or the law generally isn't one. The grounds to vacate are narrow and include an award obtained by fraud or other undue means, evident partiality or misconduct by an arbitrator, and an arbitrator who exceeded its powers or refused to hear material evidence.
The deadlines are short. The Texas and federal acts each set their own time limit, running from the award, for asking a court to vacate it.