Derogations are temporary normative measures that allow for an MSC requirement to be applied differently or disregarded.
Derogations are provided in response to editorial errors, force majeure, where the intent is no longer fit for purpose and threatens MSC credibility, or as a provision to test a policy change or modify the implementation timeframe when publishing a revised version of the normative document.
Derogations are published on the MSC Interpretations Log
. See the Controlled List of MSC Derogations v5.0