Please fill out the following form completely. Invoices shall be in a format consistent with those shown in.Exhibit C. The report shall be in a form reasonably acceptable to the Authority and shall be. All prospective bidders are required to execute the Bid Schedule, Bid Bond, Proposal, Non. Invoices shall be in a format consistent with those shown in. Exhibit C. The report shall be in a form reasonably acceptable to the Authority and shall be. Learn how to hire international contractors in this guide. Aerial view of improvements at Pittsburgh International Airport.