As the number of Circulars in force increases, further sub-divisions may be created. As part of the process of creating this new website, the opportunity has been taken to review all the Circulars and Information Letters that were published on the old website. The review showed that a number of them were no longer applicable and others were out of date. All the Circulars that remain valid and important have been reviewed and placed on this website. Circulars and Information Letters that do not appear on this website may be regarded as withdrawn. Work is continuing on the creation of new Circulars to update areas of policy and guidance that may still be needed. As they are identified they will appear on this website. Companies should ensure that vessels are provided with copies of all circulars, such copies may be in electronic format provided suitable arrangements are made for the appropriate Seafarers to access them.