E27 · Q&A
When does IACS UR E27 become mandatory?
The intent behind this long-tail query:Wanting to confirm whether and from which date a project must meet E27.
Quick answer
- IACS UR E26/E27 applies to new ships contracted for construction on or after 1 July 2024.
- The deciding factor is the construction-contract date, not delivery or keel-laying.
- Exact scope and exemptions are decided by the class society reviewing your project.
First, understand what E26 / E27 is
← First, understand what E26 / E27 is
This page's reading of IACS UR E26/E27 is for reference only; formal compliance requirements and classification are decided by the class society.

