I have been looking closely at how temporary and preliminary information is handled on ECDIS, particularly through AIO, EP notices, No Overlay areas and future-dated ENC updates.
I have put together my understanding and practical observations here. Interested to hear whether shipboard practice differs across ECDIS makes, ENC producers and company procedures.
https://thedeepdraft.com/2026/07/20/ecdis-corrections-aio-ep-no-overlay/