Amendments to Sailing Directions are given in Section IV. Those in force at the end of the year are reprinted in the Annual Summary of Admiralty Notices to Mariners Part 2 (NP 247(2)). A list of amendments in force is published in Section IV of the Weekly Edition quarterly. For volumes of Sailing Directions maintained by Continuous Revision, amendments may be cut out and pasted/corrected directly in to the book. Alternatively, and for the remaining volumes of Sailing Directions maintained by Supplement, it is recommended that amendments are kept in a file with the latest list of amendments in force on top. The list should then be consulted when using the parent book to see if any amendments, affecting the area under consideration, are in force. It is not recommended that amendments be stuck in the parent book, or the supplement of Sailing Directions maintained by supplement. But, if this is done, when a new supplement is received, care must be taken to retain those amendments issued after the date of the new supplement , which may be several months before its receipt on board.