Status of Maritime Conventions (as of 1 March 2026) 2 March 2026 The latest changes are as follows: State(s) Treaty Date of deposit Date of Entry into force Costa Rica MARPOL 73/78 (Annex I/II) 27 November 2025 27 February 2026 MARPOL 73/78 (Annex III) MARPOL 73/78 (Annex IV) MARPOL 73/78 (Annex V) MARPOL Protocol 97 (Annex VI) Solomon Islands NAIROBI WRC 2007 27 November 2025 27 February 2026 BWM 2004 The list of Status of Maritime Conventions can be downloaded from this link . Other Acts ロスプリベンション Japan P&I News ナイロビ条約 日本 組合員限定 --> Most read News 海事条約締約国一覧（2026年3月1日現在）更新 ＜Press Release＞Announcement of Organisational Changes and Personnel Changes [Revised] Hazards of Carrying Cargoes Classified as Group A under the IMSBC Code