Bid assurance collateral for a Seller may be submitted by another party such as a developer, an aggregator, or another entity. Such bid assurance collateral may be in the form of cash of a letter of credit.  If bid assurance collateral is in the form of cash, the Seller is required to submit to certain certifications included in the Cash Certification Insert (#P2-4).  If bid assurance collateral is in the form of a letter of credit, the Seller must be identified in Paragraph 12 of the Pre-Bid Letter of Credit.