Florida Statutes Title XXVI. Public Transportation § 337.17. Bid guaranty

The department shall only require guaranty with each bid for a construction contract in excess of $150,000 in an amount to be specified by the department which shall not exceed 10 percent of the preliminary estimate of the cost of the work.  The guaranty may, in the discretion of the bidder, be in the form of a cashier's check, bank money order, bank draft of any national or state bank, certified check, or surety bond, payable to the department.  The surety on any bid bond shall be a company recognized to execute bid bonds for contracts of the Federal Government.