A party seeking an ex parte order must notify all parties no later than 10:00 a.m. the court day before the ex parte appearance, absent a showing of exceptional circumstances that justify shorter notice; in an unlawful detainer proceeding shorter notice is permitted if the notice given is reasonable.
California > Superior courts (ex parte applications)
(a) Time of notice A party seeking an ex parte order must notify all parties no later than 10:00 a.m. the court day before the ex parte appearance, absent a showing of exceptional circumstances that justify a shorter time for notice. (b) Time of notice in unlawful detainer proceedings A party seeking an ex parte order in an unlawful detainer proceeding may provide shorter notice than required under (a) provided that the notice given is reasonable.
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