Draft Publications
Draft Publications awaiting approval by Member States
| Reference | Description | Edition | Closing Date | IHO CL |
| S-4 | Regulations of the IHO for International (INT) Charts and Chart Specifications of the IHO | 4.10.0 | 16 January 2026 | 45/2025 |
Draft Publications in the final stage of editing following adoption by Member States
| Reference | Description | Edition | Closing Date | Downloads |
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Draft Publications for discussion
| Reference | Description | Edition | Closing Date | Downloads |
| S-158:104 | S-104 Validation Checks | 1.0.0 | 30 January 2026 | S-158_104 Ed 1.0.0 |
| S-158:111 | S-111 Validation Checks | 1.0.0 | 30 January 2026 | S-158_111 Ed 1.0.0 |
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