According to the established practice of periodical adaptation and harmonizing of its provisions with changes occurring in the meantime, the International Chamber of Commerce in Paris, adopted in the middle of this year (1993) the new text of the Uniform Rules and Customs for Documentary Credits as the fifth revision of the Rules. The new Rules shall be in force from January I, 1994. Like the previous ones, this revision had to remove the vagueness noticed in application of certain provisions of the previous revision on the one hand, and to enable the following of the new phenomena in international transport and in other techniques of reporting and exchange of data by electronic way, on the other: SWIFT, EDI and EDIFACT. So the work on the new revision consisted in legal-technical sense in reformulation and addition of new articles for the purpose of simplification and making more certain the way of using the letters of credit. The adoption of the new revision of the Rules may be viewed also within the context of undertaking the unification and harmonization of the banking law at the international level under the patronage of the UNCITRAL and the International Chamber of Commerce in Pans. An exhaustive and detailed analysis of all these questions would certainly be useful to commercial practice, but this would imply a detailed commentary of the Rules and a larger space. So the subject-matter of this paper has been limited only to charges regarding the forms of the letters of credit dealt within the Rules.