Is there a proforma bill of lading?

A proforma bill of lading takes a similar role to a "bill of lading instruction" because it is part of the work up to agree on items and terms contained in the bill of lading, when issued. For example, the proforma calculates all freight charges and surcharges. This is then read by shipper and may be commented on for revision / re negotiation, etc, before agreeing to tender the cargo for convenience. The shipper may first send Bill of Lading Instructions to the carrier for sake of naming consignee and describing the cargo.