New- 12th Edition of U.S. Chart No. 1, Symbols, Abbreviations and Terms used on Paper and Electronic Navigational Charts Please read the following information regarding this new edition. All Dealers are w required to sellonlycopies of the U.S. Chart No. 1 edition 12, in order to insure that mariners havethe most up-to-date information. Covers of the Paradise Cay Publications (PCP) previous edition may be returned to us for full credit. Contact us for more information New in Edition 12: ECDIS Symbols and Other ECDIS Information Symbology for displaying Electronic Navigational Charts (ENC's) on an Electronic Chart Display and Information System (ECDIS) has been added to U.S. Chart No. 1. See the Preface and Introduction for more details. In addition to the ECDIS symbols shown in the traditional lettered sections of U.S. Chart No. 1, there are w several special pages devoted exclusively to providing important details about ECDIS. These pages are distinguished by the ECDIS icon, as shown below. The ECDIS pages are also listed in the table of contents in italic type.