Any IACS adopted resolution which is subsequently covered, either wholly or in part, by a IMO Technical Resolution may be deleted as a IACS resolution, or amended, as appropriate. Unified Requirements and Procedural Requirements are carried also on this website. Subject to ratification by the governing body of each Member Society and Associate, Requirements shall be incorporated in the Rules and practices of the Member Societies and the Associates, within one year of approval by the IACS Council. The existence of a UR does not oblige a Member Society or an Associate to issue respective Rules if it chooses not to have Rules for the type of ship or marine structure concerned.
Requirements are minimum requirements.
Each Member and Associate remains free to set more stringent requirements. Unified Interpretations Interpretations are adopted resolutions on matters arising from implementing the requirements of IMO Conventions or Recommendations. Such adopted resolutions can involve uniform interpretations of Convention Regulations or IMO Resolutions on those matters which in the Convention are left to the satisfaction of the Administration or vaguely worded. Interpretations are circulated to Administrations concerned or are sent to IMO for information, as appropriate. Interpretations shall be applied by Member Societies and Associates to ships whose flag Administrations have not issued definite instructions on the interpretation of the Regulations concerned.