California Code, Probate Code - PROB § 10254

(1) A sale of personal property at a public auction sale shall be made within this state at the courthouse door, at the auction house, at some other public place, or at the residence of the decedent.

(2) No public auction sale shall be made of any tangible personal property that is not present at the time of sale.

(1) That a sale of personal property at public auction be made at any place within or without the United States.

(2) That tangible personal property need not be present at the time of sale.

(1) The personal representative believes that the postponement is to the advantage of the estate.

(2) Notice of the postponement is given by public declaration at the time and place appointed for the sale.

(3) The postponement, together with previous postponements of sale of the property, does not exceed three months.