ADOPTION OF REVISION 4.7.0 OF IHO PUBLICATION S-4 - CHART SPECIFICATIONS OF THE IHO

IHO File No. S3/4405 CIRCULAR LETTER 42/2017 23 June 2017 ADOPTION OF REVISION 4.7.0 OF IHO PUBLICATION S-4 - CHART SPECIFICATIONS OF THE IHO Reference: A CL 17/2017 dated 13 February - Call for Approval of Revision 4.7.0 of IHO Publication S-4 – Chart Specifications of the IHO. Dear Hydrographer, 1. Reference A proposed the adoption of a Revision 4.7.0 of IHO Publication S-4 - Regulations of the IHO for International (INT) Charts and Chart Specifications of the IHO – as recommended by the IHO Nautical Cartography Working Group (NCWG) and endorsed by the IHO Hydrographic Services and Standards Committee. 2. The Secretariat of the IHO thanks the 47 Member States that replied to Reference A: Argentina, Australia, Bangladesh, Belgium, Brazil, Canada, Chile, Colombia, Croatia, Cuba, Estonia, Finland, France, Georgia, Greece, Iceland, India, Indonesia, Iran, Ireland, Italy, Malaysia, Mauritius, Monaco, Morocco, Netherlands, New Zealand, Norway, Papua New Guinea, Peru, Poland, Portugal, Qatar, Republic of Korea, Romania, Russian Federation, Singapore, Slovenia, South Africa, Spain, Sweden, Tunisia, Turkey, Ukraine, United Kingdom, United States and Uruguay. 3. All 47 Member States supported the adoption of the Revision of S-4. Four Member States offered comments in addition to their vote. These comments and the outcome of their review by the Chair of the NCWG are provided in Annex A to this Circular Letter. 4. When Reference A was issued there were 86 Member States of the IHO with three States suspended. In accordance with the provisions of the Convention on the IHO as amended, the minimum number of affirmative votes required was 28. As a result, and taking into account the editorial corrections reported in Annex A, the proposed Revision 4.7.0 of S-4 has been adopted. 5. The English version of Revision 4.7.0 will be posted on the IHO website at: www.iho.int > Standards & Publications > S-4 as soon as the final text prepared in liaison with the United Kingdom Hydrographic Office is available. The corresponding versions in French (maintained by the Secretariat) and Spanish (maintained by the Hydrographic Office of Spain) will be published in due course. On behalf of the Secretary-General Yours sincerely, Gilles BESSERO Director Annex A: Member States’ responses to IHO CL 17/2017 and comments from the Chair of the NCWG. Copy: Chair, NCWG Mapping our Seas, Oceans and Waterways - more important than ever  Annex A to IHO CL 42/2017 MEMBER STATES’ RESPONSES TO IHO CL 17/2017 AND COMMENTS FROM THE CHAIR OF THE NAUTICAL CARTOGRAPHY WORKING GROUP (NCWG) ADOPTION OF REVISION 4.7.0 OF IHO PUBLICATION S-4 – CHART SPECIFICATIONS OF THE IHO CANADA Canada thanks the NCWG for their work on this revision. ITALY 1) Record of updates on page 118 should be corrected for typing error. The cross reference is B-353.6 in place of B-356.3. 2) On front cover and on page III of the cover the new logo of the IHO should be inserted. 3) Preface on page V still refers to CSPCWG. It should be replaced by the NCWG as follows: This publication was developed and maintained by the IHO’s Chart Standardization Committee to 2003. Its maintenance is now the responsibility of the Chart Standardization and Paper Chart Working Group Nautical Cartography Working Group (NCWG), to which comments and corrections should be advised. Comment from the Chair of the NCWG: The NCWG Chair thanks Italy for their observations. The final published S-4 Edition 4.7.0 will include these additional editorial amendments. PERU The changes to Publication S-4 - “Chart Specifications of the IHO ”outlined in the explanatory note were reviewed, noting the amendments to the representation of aids to navigation features as well as to referencing limits for the updating of nautical charts that contain maritime boundaries. POLAND 1) B-425.6: In last line should be B-312.4 (instead of B-321.4). 2) B-437.2c missed. Comment from the Chair of the NCWG: The NCWG Chair thanks Poland for their observations. The reference at B-425.6 has been amended and paragraph B-437.2c has been restored as in Edition 4.6.0. Dear Hydrographer, Please find attached herewith : CL 42/2017 : ADOPTION OF REVISION 4.7.0 OF IHO PUBLICATION S-4 - CHART SPECIFICATIONS OF THE IHO Yours sincerely, IHO M.MOLLET