The PL 3.4 Data set check has now been updated to accommodate PL 4.0 meaning it is now a new document. This should be available to you on your bridge. The check has now been simplified but regardless, still needs to be done.

To find a copy of the data set check please go to:

 https://www.iho.int/mtg_docs/com_wg/ENCWG/MISC/IHOPreslibChart1final.pdf

You should now spend 5 minutes to check your system works with the new data set check.