'LC Import - Export' in AUSTIN provides training on letter of credit which is a document issued mostly by a financial institution, used primarily in trade finance, which usually provides an irrevocable payment undertaking. The LC can also be the source of payment for a transaction, meaning that redeeming the letter of credit will pay an exporter. Letters of credit are used primarily in international trade transactions of significant value, for deals between a supplier in one country and a customer in another. The parties to a letter of credit are usually a beneficiary who is to receive the money, the issuing bank of whom the applicant is a client, and the advising bank of whom the beneficiary is a client. In executing a transaction, letters of credit incorporate functions common to giros and Traveler's cheques. Typically, the documents a beneficiary has to present in order to receive payment include a commercial invoice, bill of lading, and documents proving the shipment were insured against loss or damage in transit.